XCode - GUI options (font size) and block comment with /* */ and other editor features for C code

Hi,

I'm new to X Code (and MacOS). I've used extensively IDEs such as Eclipse and others on Linux and Windows (and even UNIX).

(1) Block comment with /* */ and other standard features for coding:

I've been searching for a way to comment blocks of code with /* */ .

I know about the combination Cmd + / , but it only comments out a line or more with //.

The information I find on the internet seems to not match the menus I see in my XCode.

I cannot find options for Edit Menu as in https://apple.stackexchange.com/questions/214236/xcode-comment-selection-shortcut-not-working-on-european-keyboard/214243 (Structure, Code Folding, Syntax Coloring).

(2) Font size in Xcode menus:

I've been using glasses for near vision for the last months, and I'm really struggling with to read the menus of Xcode (main preferences as well as settings of a project, which have even smaller font sizes).

I don't think it is not possible to change, taking into consideration that Mac products are well known for its well-thought GUI, but I just cannot find how to change it.

With Cmd+'+' I can increase the size of the code in the Editor Window. But for the Menus I haven't found anything.

Can you help me on that? Or give a hint about what is possible and what not.

many thanks

Joan

Xcode 12.0

MacOS Monterey 12.2.1 (21D62)