its a really bad idea to use shared accounts - you should be setting up a user id for each person in the support team and adding them, so you can audit who's logging into machines.
Is there a way to group the LDAP accounts and add the group automatically? I suspect the answer will be to remember to add each LDAP account as a new user each time
EPO allows you to add groups of users to groups of machines, or even individual machines.
just don't add everyone to every machine.