Sell name colors as upgrades

[buildblox]

Title says it.

Is it possible to sell name colors as upgrades with the help of an add-on? I haven't been able to find anything does that.

 

[Kintaro]

I think you can use subscriptions too

 

[buildblox]

I think you can use subscriptions too

How

 

[Kintaro]

with user upgrades:
https://xenforo.com/help/user-upgrades/

 

[buildblox]

with user upgrades:
https://xenforo.com/help/user-upgrades/

Exactly, but how?