Can I make posts in a conversation editable for more than 30 minutes?

[Peter Salt]

Just created a conversation with a bunch of members about a race series and was hoping that the first post could be regularly updated. But looks like it's locked after 30 minutes? Can this be somehow changed?

 

[Pat "5mph"]

Hi!
I have just seen this post: sorry for the late answer.
I have changed some of your settings, please let me know if it worked.
Cheers,
Pat (Mod)