other input’s available for replacement in the SQL string

Are any other input’s available for replacement in the SQL string?

It would be interesting/useful to be able to show the use a list of “objects in the folder” ( object type could be driven by the structure/hard coded in the SQL or maybe by a previous input the user selected. )

A list of groups that start with user supplied string “good”( gsh_input_group_prefix )

SQL of next input could be something like:
  select distinct groups from my_group_view where name like “$$gsh_input_group_prefix$$%”

Exact SQL var syntax open to the whims of the project.