Hi once again @vallered,
I’m glad to hear the positive feedback for our CoBlocks plugin.
I made sure to check and it appears that this feature has not been requested yet, which is why I opened a feature request that you can find on the link below:
https://github.com/godaddy-wordpress/coblocks/issues/1606
Temporarily you may use the Posts block by listing only a selected category that may help you out in some use cases, however, do note that you may be pleasantly surprised in one of the next CoBlocks updates.
Have a nice day,
Andrija