You can create a rule with a name such as Get Context that contains a simple <select> statement. You can then call that rule from any form or any workflow during an invocation of the desired FormUtil method, as shown in the following example:
<invoke name=’getObject’> <!-- typically, something like :display.session would go here. But instead, call the handy rule --> <rule name=’Get Context’/> <s>User</s <s>SamUser</s> </invoke>
That invocation could then be part of a greater utility rule that you can use in both forms and workflows.