I would love to have a 'loop module'.
Everything within the loop start and loop end gets looped until a specified button (like skip foward for example) gets pressed.
This could be great if you have a animated version of your homecinema logo. That is basically doing an idle animation until the guests arrive. Once everyone is sitting you hit the skip foward button and the rest of the playlist starts.
Did a quick visual layout of how it could look in the sequence:
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