Number of Orca Forum Topic Links in the Homepage

On my D7 site I can see the latest 4 posts in the Forum Post block in the home page.

Is there a quick way to show 10 (or any number) of posts in that block?

Code changes are fine with me.

Any suggestion will be much appreciated.

You can change it here: Builders/Pages Blocks => Homepage
click on the block Forum Posts => Number of RSS items (0 - all): 4
change the number here...