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Track Editing – a full explanation

By in News .

In our last update to Explain Everything we included a powerful tool – Track Editing. Here is the tutorial we prepared for you to help you understand how this feature works and how to use it to its full potential.

The basics

Track Editing allows to control the content that you’ve recorded or that you’d like to add to the existing recording. There are 3 features that allow you to do so – the timeline, track editing menu, and recording mode switch.



After you record your presentation, open the timeline by pressing the timer button on the horizontal bar. There will be two tracks filled with clips – the video track on on the top and the audio track on the bottom. These clips represent all actions that were performed during the recording, whether it was drawing, moving an object, using a laser pointer, or a voice recording. You can swipe to scroll through the timeline, and zoom in and out with pinch gestures. The red line in the middle of the timeline is called “the playhead” and it marks the current time.

Behavior of tools in the Timeline

Every animated action performed during recording will create a clip in the video track. Each clip in the track will display an icon of the tool used to create that action and a color of the tool (if applicable). General rule of thumb is that actions without animations (perform in just one frame) will not be displayed in the timeline unless they are playback controls of audio and video files that were inserted in the presentation. The following list explains how each tool will be displayed in the timeline when recorded and how it will behave while recording:

Tool Timeline clip Description
Hand tool Every object you move, scale or rotate with the hand tool will create a separate clip in the video track.
Draw tool drawtool-nobckg Each line you draw will create a separate clip in the video track. These clips will also have a color indicator inside them. Although the whole drawing will be treated as one object, each line can be edited separately with track editing menu.
Shape tool shapetool-nobckg Creating and editing the shape via double-tapping will create separate clips.
Text tool texttool-nobckg Each instance of writing will create a clip with a color indicator. For example if you hide the keyboard after you write something in the text box, the clip will be cut. The clip will not include alignment or text box size changes until you accept them.
Insert object import Inserting an object will create a clip in the video track at the moment you insert it. The files you insert will behave differently depending on the type:

  • Image files: acts like a regular object. Moving and animating it will create clips in the Video track.
  • Video and Sound files: will create clips in the video track when a video or sound is recorded, played, or paused. An audio clip will also be added to the audio track to represent the sound from the file. These clips cannot be split or deleted individually in track editing menu and can only be removed from the timeline by deleting the object itself with delete tool,  “Delete all tracks to end” option in Track editing menu, or by replacing it by setting recording mode switch to replace existing mode and re-recording the presentation.
  • PPT/KEY/PDF – when imported during recording, the recording will stop. After they’re imported they will behave as a regular image.
  • New Browser: Interaction inside the browser window will not create clips in timeline.
 Delete delete 3 Deleting an object will be displayed in the timeline at the moment you delete an object from the stage.
 Erase  deletetool-nobckg Erasing a drawing will create a clip with white color indicator.
 Laser pointer laserpointer-nobckg Screen taps with a laser pointer selected will create a single clip in video track regardless of how many laser pointers you put in at that time. You can create multiple laser clips by setting New recording to “mixed with existing” mode and record new laser clip.
Inspector tool  (no clip) The functions of inspector tool will not be present on the timeline apart from “set rotation” (as it is animated action). Adding a rotation to an object will create a clip just like it would if you moved it with hand tool and can be edited the same way.
Undo  (no clip) Will create clips in the timeline marked as if the object was deleted at the moment you press undo.  We don’t recommend using it during recording though as it is designed to quickly correct an error while working on static content.
Zoom and Pan handtool-nobckg  Each action will create a separate clip in the video track.

Track editing menu


If you press and hold on any of the clips in the timeline a track editing popup will appear. If you press and hold a clip that is under the playhead you will be presented with four buttons: Set Mark, Split, Delete, and Delete all tracks to the end.  You can press and hold the clip that isn’t under the playhead and you will be able to delete it. If you press on an empty space on the timeline the menu will appear at the playhead position and you will be able to set mark or delete clips to the end.

Recording mode switch


With the recording mode switch you are able to choose between two types of recording. “Replaces existing” mode will delete all the clips from unlocked tracks when you press the record button and overwrite them with new recording from the point of time the playhead is at. “Is mixed with existing” mode will not delete any of the clips and will add all the actions you perform to already existing recording.

Track Editing Scenarios

The video below presents most common scenarios of using the timeline and track editing. We also described in detail all the steps that you can follow to achieve the desired effect and added additional scenario covering Editing Locked tracks that isn’t in the video.

Deleting a part of the recording with Set mark option

With the Editing Tracks popup you are able to mark a part of the recording, delete it and leave it empty or join the remaining parts together. To do this:

  1. Open the timeline
  2. Slide the timeline so that the playhead is at the time you want to start marking it.
  3. Press and hold the clip.
  4. A popup will appear.
  5. Tap “Set mark”. A yellow marker will appear on the timeline.
  6. Repeat the step 2 through 5 for second marker.
  7. You will be asked if you want to Delete the marked part or Delete and compact it.
  8. If you want to remove the clips from the timeline and leave the timeline empty choose “Delete”. If you want to delete the clips and join the remaining parts of the recording together choose “Delete and compact”.

Splitting tracks

With the Editing Tracks popup you are able to split the chosen clip into two clips than can be edited separately. To do this:

  1. Open the timeline
  2. Slide the timeline so that the playhead hovers over the clip you want to split at the moment you want to split it.
  3. Press and hold the clip.
  4. A popup will appear and the clip will become yellow.
  5. Tap “Split”.
  6. The clip will split into two.

Deleting single clips

  1. Open the timeline
  2. Slide the timeline to the desired moment.
  3. Press and hold the clip you want to delete.
  4. The clip will turn yellow and the editing menu will appear.
  5. Tap “Delete”.
  6. You will be prompted with a confirmation popup as the deletion cannot be undone.
  7. Tap “Yes” to confirm

Deleting all tracks

  1. Open the timeline.
  2. Slide the timeline so the playhead is at the moment you want to start the deletion.
  3. Press and hold anywhere on the timeline. A popup will appear.
  4. Tap “Delete all tracks to end”.
  5. The tracks that are about to get deleted will be marked in red and you will be prompted with a confirmation popup.
  6. Tap “Yes” to confirm.

Locking tracks

There are two padlock icons at the right side of the timeline. Tapping on these will cause the corresponding track to lock. The locked track will be greyed out and it will NOT record actions – sounds for the Audio Track and animations for the video Track. With locking of tracks you can redo portions of the track without changing the other.

Overwriting a part of the voiceover

With selective locking of tracks and recording mode switched to “is mixed with existing” you are able to redo a part of the voiceover without redoing the animation.

  1. After you record your presentation tap the recording mode switch next to the timer
  2. Select “is mixed with exsisting mode”
  3. Open the timeline
  4. Tap the upper padlock icon so the video track is loced
  5. Slide the timeline to the moment you want to start from so the playhead is at it’s beginning
  6. Tap the record button
  7. The animation will be played as if you just pressed play button but the voiceover will replace the existing  sound
  8. Press pause to stop recording
  9. NOTE: Rerecording cannot be undone

Editing with locked tracks

Locked tracks cannot be edited. However, locking one track allows to delete all clips from another with Track Editing menu:

  1. Open the timeline.
  2. Tap the padlock icon on the track you want to lock.
  3. Slide the timeline so the playhead is at the moment you want to start the deletion.
  4. Press and hold the unlocked track
  5. Tap “Delete the Video/Audio track to the end” button.
  6. The unlocked track will be marked in red and you will be prompted with a confirmation popup.
  7. Tap “Yes” to confirm.

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