Well, she can do send-person-to-place too but that probably has teleportation-like complications. She goes and asks Olórin about this.
The Valar are very worried that, given the opportunity, lots of people would hop to the Outer Lands, do dangerous things, possibly commit crimes against their fellow Elves or eventually against the other races that will arrive in the Outer Lands for which they can escape accountability by hopping back to Valinor, and otherwise use their place of refuge as one of leverage. Does Bella have any ideas about how to avoid that?
...She hasn't met anybody who seems like the type but she hasn't met everyone... Uh, maybe if you are in Valinor as of right now you could need a permit to go to the Outer Lands or something? She could build a time limit into the spell, if they think dangerous and/or criminal things might take a while?
Okay, so, there needs to be some thing Manwë can do to a person that the spell can recognize which is sufficiently unfakeable for their purposes...
"Okay, that's easier. Uh, people who come from the Outer Lands just to visit can go home, right?"
"Okay, just checking. Full speed ahead on visiting spells then."
And she goes full speed ahead on visiting spells! They are... complicated.
Sure! Maybe she should have an actual workplace of some kind? People could come there and help out with stuff.
...Okay. She sets up an office and gives lectures and invents stuff. She writes a textbook.
It's so bustley and productive and great. Would Fëanáro like to try teaching to practice for his ten children and generally see if he's making progress on being patient? He knows a fair amount about magic.