When pressing a single letter on the keyboard for a long time, typing guide for keying in special characters appears.
However, the user is not able to use mouse to select the special character that he wants to key in, or use the number index to choose the special character, rendring this feature difficult to use, on a MacOS system.
Also, many fields in the UG do not explicitly mention whether 'alphanumeric' includes these special characters and may cause further confusion to the users.
When pressing a single letter on the keyboard for a long time, typing guide for keying in special characters appears.
However, the user is not able to use mouse to select the special character that he wants to key in, or use the number index to choose the special character, rendring this feature difficult to use, on a MacOS system.
Also, many fields in the UG do not explicitly mention whether 'alphanumeric' includes these special characters and may cause further confusion to the users.