change request: clear "unread"

[msedv]

First of all: thanks for this great add on; over the years I spent many hours maintaining my own add on (and fearing the effort of adoption with every Thunderbird-Upgrade) until I switched to yours.

Only one feature would be nice: I hate "unread" messages and bold folders after moving a mail (which in my case means "done") - what about a checkbox "mark read" for each of the 10 folders? Would save me a lot of clicks.

Tnx!