SSD and HDD mounts; looking for a way to easily assign them to accounts or resellers

Situation:
Server with both SSD and HDD mounts for /homeX

Want:
easy way to assign accounts or resellers to a certain mount

Reason:
We want to sell cheaper HDD-based accounts, as well as more expensive SDD-based accounts

Current situation:
WHM assigns accounts to the mount with the most free space, which isn't always the mount we want.

Workaround:
temporary change the settings in "Basic cPanel & WHM setup", create acount, return settings to previous mount.
Or create account, and then from "List accounts" move the account to another mount.

Problem:
This is a lot of steps to take, for something we need to do almost every time we create a new account.
For resellers, there doesn't even seem to be a way to assign all accounts created to a certain mount; it always follows the settings in the "Basic cPanel & WHM setup"

Question:
is there an easier way to fulfill our needs?