Ok, then the only way to preserve the effects is most likely to duplicate the full sequence and then delete all clips except the one you want to keep (and then to adjust its start time in sequence).      ... View more

You need to retrieve the list of selected project items (make sure to check the "only selected items" checkbox) and then check if the length of that list is equal to 1. ... View more

Actually, Automation Blocks returns the post expression value. I just did a quick check and on my machine it works as expected: Here the pre-expression value is [50,50] and the expression adds 100 to both x and y. Maybe you are accidentally retrieving the value of a wrong property or some other bug in your code? ... View more

AVLayers have a SourcePointToComp function to convert points from layer space to comp space: https://ae-scripting.docsforadobe.dev/layers/avlayer.html#avlayer-sourcepointtocomp   ... View more

You could implement your own custom CEP panel to automate such tasks with the scripting API of Premiere Pro. An easier solution would be to automate it with my (paid) extension Automation Blocks for Pr. WIth Automation Blocks, you could create a custom automation which loops over all files of your root folder and subfolders and for each of them check if it is a prproj-File. If it is a prproj file, Automation Blocks could first open the project file and then replace the two footage item's media paths with the ones you want (you should be able to construct the file paths of the desired footage files from the project file path using the Replace in File Path block, to replace the name of the file but keep the folder it is contained in). ... View more

You can execute Automation Blocks scripts from Kbar, but I don't think there is a way to execute Kbar actions from Automation Blocks. That would require a mechanism provided by Kbar to remote-exectue the actions and as far as I know, Kbar does not offer that.  However, depending on the types of actions you have, you can implement the same actions in Automation Blocks, too. If you have an "Effects and Presets" button, for example, you can use the Apply Preset block, or if you have a button which triggers a script, you can use the Execute Code block. Or if you have a button, which runs a menu command, you can use the Execute Menu Command block. Bottom line: Most likely, you cannot trigger a Kbar button from Automation Blocks, but everything that can be triggered with a Kbar button can probably also be implemented as an Automation Blocks script.   ... View more