Hmm, I'm not sure if there's a system for translating keyboard shortcuts to other keyboard layouts?
For the USA layout, / is typed without using Shift (the Shift modifier for that key produces the ?). If I try to set an RStudio shortcut using a symbol that has to be typed using Shift, I have to include Shift in the shortcut, and the shortcut is always shown as involving Shift + the non-shift symbol on the same key.
For example, say I want to set a shortcut involving the &, which on my layout shares a key with the 7. I can create a shortcut that's Command + 7, or a shortcut that's Command + Shift + 7 (which I guess could also be thought of as "Command + &"), but there's no way to make Command + & show up as the keyboard shortcut setting.
What's your default RStudio shortcut for "Block Indent"? That would seem to be a parallel case, since the default on my system (Ctrl + ]) involves a symbol (the ]) that can be typed without modifiers with a USA keyboard layout but not with a Spanish (ISO) keyboard layout.
(If I switch my keyboard layout to Spanish, I can't use the Block Indent shortcut anymore: Ctrl + + doesn't work, and neither does Ctrl + Alt + +).