With Astah Script Plug-in, you can renumber the Goals and Contexts on the GSN.
(1) Download the script from here.
(2) Unzip the downloaded file and save this resetGSN-ID.js file.
(3) Launch Astah GSN and go to [Tool] – [Script]. (To add this menu, you need to install Script plug-in first.)
(4) A [Script] window opens. Select [Script] – [Open], and select the .js file you downloaded at step (2) .
(5) Script appears in the window above, click [Action] – [Run] or click the [Play] button in red box below.
(6) When it completes, it shows the “Finished!” and a result of how Astah changes the ID in the bottom pane and the numbers are updated at the same time on GSN.
Other script you can use in Astah GSN