You can add the members, groups, site wide activity and a few other widgets from your dashboard. You might have to adjust your css to make it look good though.
Danielfelice is correct. BuddyPress widgets are available on all active themes that allow for widgets.
If you’re talking about the member theme, those are widgets actually also, you would just end up reverse engineering the member theme to include both its CSS and the CSS of the “Irresistible” theme.
but if i want to put them in the main area and not in the sidebar?
You can add any content in bp, to any blog, using any theme, any place in that theme. You aren’t restricted to just the widgets.
See: https://codex.buddypress.org/developer-docs/custom-buddypress-loops/
