Randomization & cache for tweets and favs

[idomic]

I understand I can create multiple bots from different conf files,
Is it possible to randomize those actions so far, for instance retweet, favorite, follow and unfollow?
When I tried to run the 4 different bots with multi-processes and threads it still ran synchronously.

Also, I've encountered a situation where I retweeted and favorite something that I already retweeted and favorite. Is there a caching/list like the following list?

Thanks!