How to change the design unit to metric?
When I design a gusset connection using RAM integrated solution , I couldn't change the plate sizes , how could I do that?
I guess you are using RAM Connection along with STAAD. In that case, the base unit set in STAAD will be used in RAM connection.Refer below wiki to know more.
https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/58134/in-ram-connection-integrated-within-staad-pro-how-to-set-up-unit
You can change the plate dimensions if manual method is selected. See the stesp in below snap to know the process. You need to do the changes in connection pad workflow.