A way to select all the (top of) stacks

[ubacher]

Would it be possible to have a collection for stacks? I can not find an easy way to select all the stacks.
Maybe also distinguish/select between collapsed and expanded stacks.

And related to this: A global Expand/collapse all stacks command.

I could not figure out if one could set up a derived category for this.  Maybe I just can't find the appropriate
section in the help file.

[Mario]

And related to this: A global Expand/collapse all stacks command.

When you choose the Expand Stack command, all selected files are checked for stacks. So if you want to expand all stacks in your database, select all the files and then Shift+U. Remember: IMatch always works with the current selection,whether this is one file or all files in the database, a folder, a media, a drive, a category, a collection, a timeline node, ...