Marcos for releasing cue number on cuelist

Dear All
pls advise me on the following

How can I use marcos to release a cue from the cuelist
I would like to release cue1 when I am running cue2 on the same cuelist
Reason is I am working with Arkaos media server

Cue 1 running layer 1 media
Cue 2 running layer 2 media
Would like to release the layer 1 on cue 1 when running cue 2

thanks
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