Signature permissions on a per User basis (vB3.8.4)

[tlwwolfseye]

Is there a Mod (or any other way) to have the Signature permissions on a per User basis, not just group based ?

Which means that I for example can allow some to have a larger (size) signature than others, without having to create an additional usergroup for them. Or if someone screws up, I can deny him to use a Signature at all without having to move him into another usergroup.

But the size would be the more important factor. The Board is a vB3.8.4. If you know something that already exists and can do such things, please let me know.

Thank you in advance.

Wolfseye