Go into your conversations list. Off to the right there is "replies" and "participants". Little box near those. Chceck a bunch you don't need. Go to "actions". "leave conversation" click "go" then "ignore future responses". That will delete conversations.
To increase number of...
My stepson was playing it the other day. I thought it was the Lagrange! It's really THAT good. I keep it on my "small" pedalboard (6 pedals). I do hope they put the Lagrange in a single pedal size like they did the Bogner Blue.
1000% YES it is brighter. I love the Dunlop Echoplex. It's what I use on my mini-board for longer delays and that beautiful analog-LIKE "wash" that I love the DMM for. The first time I played it, my stepson said "Is that one of your $400 delay pedals"? (Timeline, DMM).