Exclude page not working

Exclude pages not work right.

I have 7 pages of blogs. At this time I want only about a dozen of my blogs to be retweeted/tweetilyed. Can’t “exclude” more than one page at a time.

Do I need to hold down the shift button or something?

https://www.ads-software.com/extend/plugins/tweetily-tweet-wordpress-posts-automatically/