How to use Shorthand Aliases in Move Order issuance form

At our client Move Order requisitions for consumption items are created by department users (eg: Admin, Sales, IT, etc).  We dont want the users to enter the full GL expense account code combination. They should only get a restricted list of Account aliases just like Account alias issuance window.  Since Inventory Account Aliases are not available on MO form Shorthand Aliases (defined in GL) have to be used.

Problem:

1) shorthand aliases defined in GL, once enabled, become available in all forms (We only want to enable them for Move Order form).

2) All shortahnd aliases defined for the GL flexfield get listed in MO form including the ones not relevant to the OU. we only want the user to see a restricted list of department expense aliases.