Am I missing a easy one-button to crosspost something from one community to another? If not, then that would be pretty handy.

I know there's share, and I love how much flexibility there is in the share button already, but as a bit of a noob a simple one button crosspost button would be nice. Especially if it has some automated best-practice type settings for the message and media like linking to original post, maybe tagging as a crosspost etc.

Bit of a noob, and even on Reddit was a long time lurker so I always get a bit anxious at how I should be crossposting "correctly".

You could even sneak in some tagging or a formulaic note in the messages to make it easy for Sync to merge duplicate posts found on multiple communities.