Access to the tiddlers inside a CompoundTiddler?

Are there wikitext techniques to access the tiddlers inside a Compound Tiddler?

I’m trying to make certain static changes to a wiki with a known structure, adding or removing some tags, adding or deleting some tiddlers. I’m trying to determine the best way to supply the configuration for that. I’m about to open another topic to ask about that. One possibility I thought of was to have tiddlers in a Compound Tiddler that I might clone, or which might hold information about other changes.

But I don’t know how to access those inner tiddlers. Clearly it can be done from JS, as the TestCase widget must have access to these. But can it be done in wikitext?

The testcase-widget creates an independent store, which is “outside” the basic store by intention. So we are able to test functionality without side effects in the main store.

If you create a TestCase tiddler, you will have a More → import tiddlers function, that is able to transfer tiddlers from the test-store to the main store. See screenshot

Thank you. I probably wasn’t clear. I was looking for something like programmatic access, similar to the way plugintiddlers and subtiddlerfields reach inside a plugin to extract information from nested tiddlers. Is there something similar for CompoundTiddlers?