Hey bazinga
Yes you can use the Bot on multiple world's and server's
For me the best way is to download the Bot so its clean and then copy & paste the folder as many world's you have and set it up for each world.
I always do like "world 1" next one "world 2" ....
Short to say for each world you need to set up a folder with the bot.
Sry for my english hope you can understand