yes, when using circles it will just use the first circle. I will see about adding the option to specify what / how many circles to the feature suggestion list.
Same with "invite to join", added to feature suggestion list
Finding Circle Options: Could Not Find Add To Circle Button" is that some sort of a bug?
This means, the program was at the stage where it needs to select circle options, but when examined the page, no circle options were present.
Either something went wrong before (failed to click a button) or that the page was loading very slow and hadn't displayed those options yet. Due to the ajax / async nature of googleplus site, this can happen as it isn't a normal page load. ie. the page loads, then these additional page loads fire off with no notification of completion, this is what loads the content / controls.
When I put 2 Threads or more for faster threading - the bot crashed within 2 minutes.
What crash message did you get?
around 3 threads should be ok, more than that and you may run into issues with the browser driver component. This is an external module and has some issues running multi threaded. Hopefully a new version is coming out soon, which will fix all this, but until then, try and keep number of threads low overall. These means processing threads (on processing tab) and the action threads, on the action tabs