How to Configure Macbook Keyboard Layout inside Citrix Session
To get the Macbook keyboard layout working correctly inside Citrix sessions, proceed as follows:
Under Sessions > Citrix > Citrix Global > Keyboard > Keyboard mapping file, select "Linux".
Under User Interface > Input > Keyboard > Keyboard type, select "Macbook".
All other keyboard layout settings can be left unchanged, i.e. as set by default.
In order to type special characters like € and #, use the right-hand Alt/Option key, not the left-hand key.