GameBanshee Forums

Ah if it's part of a pack that's why I couldn't find it.

"The BG1 NPC Project: NPCs Can Be Sent to Wait in an Inn
Tutu Only
This component allows BG NPCs to be sent to an Inn, another location, or to wait for you when you dismiss them from the party. This component is not compatible with Sword Coast Strategems, but both mods detect each other and will not install components that conflict. If you would prefer to use Sword Coast Stratagems' version, install that version before installing BG1 NPC's version. In the BG1 NPC version, slightly different waiting places are used, and NPCs will highly dislike being abandoned alone in dangerous areas..."

http://www.gibberlings3.net/bg1npc/index.php

Tada!

I'm fairly certain your Reputation score has something to do with an NPC disappearing, or staying put, when you dismiss them. In early chapters Jaheira (and Khalid), for example, would stay put if dismissed. But Jaheira always disappeared whenever I dismissed her (taking Khalid too!) after adventuring for awhile, because by that point I had acquired a higher Rep. In fact, I seem to recall testing this with old savegames, and I seem to recall the "disappearing" point was with a Rep score of 18 (or higher). This was also the case with other characters of neutral alignments, such as Xan.

"Our quest is vain..."

Depends on reputation. With 18+ neutral and evil dont stay but leave. I used Viconia as a nurse in FAI. Stopped working once i had too much rep. Same with Branwen(who is neutral). Xan is parked in Beregost. It is possible to send NPCs to towns(beregost, nashkel,fai) with G3 BG1 tweakpack installed. No TuTu needed lol.