Re: Multiple activity loops on same page
Some of the function’s parameters are what I call “smart”; depending on what type of object it controls, and who is logged in and what part of the site is being viewed, if arguments are specified, it will put in some defaults. Obviously if you have a loop that’s changing content from page-to-page that you don’t want, you need to pass an argument appropriately.
There’s no way of creating a second BP Activity Stream template loop object, for example, like you can with wp_query. As long as you don’t try to call an Activity Stream within an Activity Stream loop, I think it will be fine (with passing arguments per first paragraph).
Look in bp-activity-templatetags.php for functions for the Activity Stream template loop; I can’t quickly find a list in the codex.