How to Prevent UI Freezes and Crashes During Bulk Timeline Edits via UXP API?

[justin2taylor]

This is the ideal approach with UXP Locked Access transactions, if/when possible.

If you can group actions into a single Locked Access transaction, you’ll get infinitely better performance, and the added benefit of being grouped as a single undo item in history.

We’re doing this for removing/deleting hundreds of clips at a time with success.

The limitation comes however if transactions are dependent on previous transactions requiring them to be separate.

I’ve started a separate issue for this one, requesting Return Values for Actions so we can group dependent actions together, instead of only independent actions, without the need for separate transactions:

We need Return Values for Actions within ExecuteTransactions for Undo Groups to make sense

Premiere UXP introduces the concept of creating actions and executing those actions in bulk in order to have more control over the undo history. This is a great step forward from ExtendScript which did not have undo groups, however the implementation fails to make sense in it’s current state. Currently all actions do not return any values as you would expect, so you’re only able to run bulk actions which are unrelated (e.g. delete a bunch of separate clips), while actions that are dependent on…