Yes,  I would like such a feature too.
 
Right now I just add some garbage text like @#@  and do a search to go back to that same line....
 
 
You can also make a 'bookmark' folder or a series of them & use auto assign form (and hotkey icon if desired) to instantly assign any item to that folder...   item then shows up in bookmark view (if you've opened or set up such a view)...    not a perfect solution but sometimes handy..
 
you can also use duplicate views,  two views with the same folder,  so that you can save your  place in one view, and keepworking on the same outline in another view.   Each 'view' is a 'bookmark' and can have its own fold levels, etc.
 
 
 
 
Finally, the magic Gather tool allows you to 'hijack' an item,   to place it on a 'hijack' view apart from the rest of your outline.   Not exactly what you're after but can be very helpful for reaching same result-- access to particular items/sections of outline directly....