yes!
Will help immensely to feed the receiving colony too. Also, it does no harm to leave the cage locked for a few days once in the hive before allowing the bees to release the queen -as I've said before, if they don't want to look after her in the cage they'll soon supercede her once she's released (if she gets that far).
There's a nice trick buried in the following video, and yes it is practical and does work although in your present circumstances it would be better used to determine whether to allow release by the bees rather than doing so manually:
https://youtu.be/Yg92q9hPIv8
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