It's not guessing as much as reading all the documentation. No one can help determine the correct drawing revision except someone in your organization. However, I can give some hints about parameters:
Examples:
&total_holes where total_holes is a parameter or the name of a dimension
&d31:45 where d31 is the name of a dimension and 45 is the session ID of the component the dimension is from (Use Info/Switch Dimensions to show the symbolic names used on a drawing and to see the related session IDs.)
&todays_date
&model_name(:session id)
&annotation_name(:session_id) (example Change_record note in the model tree ->&Change_record.)
&scale (this is the default scale of the active model on a drawing. If there is more than one model for a drawing the value for this may not represent what is correct for the model shown on any particular sheet.)
&type
&format (size)
&linear_tol_0_0 et al
&angular_tolerance_0_0 et al
¤t_sheet
&total_sheets
&dtm_name
&part_note - This is display starting on the next new line
&sym(name of symbol)
&<parameter_name>:att_mdl
The system will search what it's attached to fill out the parameters, assuming it has those parameters. Watch out for cross sections, you have to attach to a surface not an edge, the edge belongs to the assy, not the sectioned component.
For a note with a leader, this shows two lines, the first with the parameter bom_part_no, and the second with the param, bom_description_asm.
&bom_part_no:att_mdl
&bom_description_asm:att_mdl
Also available -
Param_name:att_edge Edge
Param_name:att_feat Feature
Param_name:att_mdl Model
Param_name:att_cmp Component