We set a lookup field to display other custom entity record in Custom Entity Quick Creat form,

If the filter condition for the search field is [User] and [Value is set], all records are displayed. 

However, we would like to display only the records that are relevant to our team.

If we set the filter condition to [User] and [Equal to current user], the records will not be displayed.

It would be very convenient for users if the above filter conditions are available and only records related to our team could be displayed.