Simultaneous link of related items

Heya Dave!
I've seen this requested repeatedly. I'd like to add a bit more to it:

I'd like to see the process of relating things to other things to be MUCH easier...

consider drag-and-drop, or some form of 'relate items' mode.... having to switch to 'edit' mode for EVERY SINGLE ITEM .... only to THEN have to do the same in reverse is just .... OBTUSE

or, perhaps make it easy to 'create a related item' from an existing item. (wherein one could select:
- hierarchical:
- unidirectional:
- relationship TO parent FROM 'new-related-item'
- relationship FROM parent TO 'new-related-item'
- bidirectional:
- relationship FROM parent TO 'new-related-item' AND relationship FROM 'new-related-item' TO parent
- lateral:
- unidirectional:
- relationship FROM all siblings TO new related item
- relationship TO siblings FROM new related item
- bidirectional:
- relationship FROM all siblings TO new related item
- relationship FROM new related item TO all siblings

create-another-like...
Say you have a server, which you create several api keys for...
Having the ability to set a template for a related thing... ie:
api-key-for_$service
(which has a slew of 'unique' attributes, as well as some URLs populated)

this would make relating items a whole lot easier... and generally more useful, IMO...

course, it also makes the idea a whole lot more complicated.....

¯\_(ツ)_/¯