I'm prototyping a BT 2022 workflow deployment now and finding that adding users is not working well. Unlike adding users or groups from within windows, for example, the domain list of users is *everyone* and *everything* in my company. We have tens of thousands of employees, groups, service accounts, etc. so the list is exceedingly long.

There is no loading indication, either, so cannot tell when it's working or when it has frozen--which it appears to do readily. Sometimes typing in a name like Doe may filter the list further, but upon clearing the box the list doesn't properly reload itself.

To make matters worse even if I know the user I want added, such as amer\john.doe, I cannot just type that into the box and hit OK; I must click it from the list if/when it loads. This impacts adding users to workflow states as well as adjusting user permissions within administration console. 

Is there anything to be done? Effectively all of this functionality seems shut out from me as the list very rarely loads (even if left for a long time).