# Premiere UXP + native Add Edit: supported sequence targeting and grouped Undo?

**URL:** <https://forums.creativeclouddeveloper.com/t/premiere-uxp-native-add-edit-supported-sequence-targeting-and-grouped-undo/12344>\
**Category:** Premiere Pro\
**Created:** [October 20, 2026, 11:55pm UTC](https://forums.creativeclouddeveloper.com/t/premiere-uxp-native-add-edit-supported-sequence-targeting-and-grouped-undo/12344 "2026-10-20T23:55:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![thursdaytcg](https://avatars.discourse-cdn.com/v4/letter/t/6f9a4e/32.png) [@thursdaytcg](https://forums.creativeclouddeveloper.com/u/thursdaytcg)\
**Post date:** [October 20, 2026, 11:55pm UTC](https://forums.creativeclouddeveloper.com/t/premiere-uxp-native-add-edit-supported-sequence-targeting-and-grouped-undo/12344/1 "2026-10-20T23:55:11Z")

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Environment: Premiere Pro 26.5.2 on macOS arm64, Premiere 26 C++ SDK, UXP Hybrid Plugin SDK v6.5.0.

We are investigating direct timeline silence removal from a UXP panel, preserving existing clips and linked A/V without creating subclips.

A bounded ControlSurface prototype registers ControlSurfaceCommandBase and obtains its host command ref in Update after Connect. GetCommandCount/GetCommand enumerate `global / cmd.sequence.razorateditline`; ExecuteCommand successfully performs one Add Edit. On a disposable duplicate, we verified on-frame video/audio ranges, retained seeded Motion/Volume/Opacity values and keyframes, paired selection, no new Project items, and single-edit Undo/Redo. This does not establish whole-plan Undo or general effects preservation.

Before expanding this into a production Apply operation, we need two supported guarantees:

1. **Target identity at dispatch:** Is there a supported native API to validate the active project and sequence identity in the same main-thread task immediately before ExecuteCommand, or bind a command to a specific sequence instead of active UI context? A UXP preflight followed by asynchronous dispatch leaves a target-change race.
2. **Whole-plan Undo and failure boundary:** Can a bounded set of Add Edit and remove/ripple operations be grouped into one named Undo operation? Is there a supported integration with Project.lockedAccess()/executeTransaction(), or a native equivalent with defined partial-failure behavior?

The [Hybrid build guide](https://developer.adobe.com/premiere-pro/uxp/plugins/hybrid-plugins/build) requires host work to be scheduled asynchronously from the scripting thread onto the main queue. The [ESLint reference](https://developer.adobe.com/premiere-pro/uxp/resources/fundamentals/eslint-support/) disallows async work inside lockedAccess/executeTransaction callbacks, so awaiting a native command inside those callbacks is not a solution.

We inspected the downloaded Hybrid SDK: UxpAddonShared.h provides value/Promise/queue APIs but no Premiere target or Undo interface. Its README documents native suite access under Photoshop-specific integration; we are not assuming that applies to Premiere.

Which Premiere-specific supported interface or workflow should we use? If this combination is not supported, confirmation would help us avoid implementing an unsafe bridge. We are not using private/QE APIs or guessed numeric command IDs, and are not asking for initial Track Lock or Linked A/V getters. Full-plan Apply remains disabled pending this boundary clarification.

Thank you.