Hi, im working on a page with a datagrid and topbar on it, and would like to put a dropdown menu in the topbar, which would filter the datagrid. Im struggling to even be able to put the dropdown menu into the topbar, as the topbar is a part of a marketplace component called atlas_core and when i put a dropdown menu into it by editing atlas_core, it doesnt even show up. On top of that, im not sure how to get the datagrid context into the topbar to even do the filtering logic. pretty sure im not going about this in the best way either. any help would be appreciated. thanks :)