It's a shame you guys don't have the 2024 version as you can edit anything how you like using the Edit Riff button in the Tracks window.
The above workaround renames the drum to the chosen RT to allow deleting of a section, it's so easy to Edit any drum section using the source RealDrum file direct in Edit Riff allowing you to change a shot or push to whatever one you want without it renaming the Drum track. I can add anything back anywhere at anytime.
It works the exact same way as I showed in Reaper, allowing you to extend or change solo sections, giving total control.
I think it's well worth upgrading from your old versions to 2024 for this feature alone.

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