User Templates Searchfield filter AD Accounts

With the Searchfiled it is possible to read Accounts from Active Directory in Templates.

I currently have the following JSON-Code in Place for this:
{
"Name": "manager",
"Definition": {
"Type": "SearchField",
"Label": "Manager",
"ObjectType": "Account",
"IsEnabled": true,
"IsObjectSearchable": true,
"Filters": {
"ActiveDirectory": "(Status & 0) = 0"
}
}
},

 

This works fine in ARM Fatclient

Is there any option to filter the results of this field to only show Users staring with the string "_Manager*"?

Or is there alternative field that can do something similar?

Thanks a lot for your help!