High Sierra Topix

My PM is getting full. How do I delete posts? I figured out how to "mark" them, but not how to delete. Does it matter? Do they just fall off the end when full?

mark those you want to delete. scroll to the bottom and on the lower right hand side of the page, there is a mark/unmark as important. it is a pull down list and select the delete. voila.

Worked great! Thanks