"In best yoda voice" : Yes listen to Piru you must. The default tool must be changed in each .info file. Yeeesss.
Single click the .guide files icon(s) and select Icons/Information from the menu and just change the default tool to multiview. It should be that already. If it is; other problems could be a missing path; but if you fully qualify the path as Piru suggests it should work. Unless you have a missing amigaguide.library or something.