Hello,
I don't know if DMs currently have anything similar to this, so here goes...
I just remembered a mechanic that was used on another server I played on. It allowed the DMs to create custom NPCs without having to wait for the module to be updated. Requires a bit of work, but it is quicker then waiting for an update.
Basically it requires two DMs to complete. or a DM with two accounts/computers
Step 1: DM creates a player account, creates character as any other player would do. Second DM provides said character with levels and gear as needed for the intended purposes.
Step 2: Second DM uses "Clone Character Tool" which is a fairly common script from what I understand. (it was used for a Doppelganger plot line on my previous server) Basically clones the character into an NPC that can be possessed by DMs
Step 3: Log off player account and log back in as DM and bam you have your custom made on the fly NPC