AutoCAD Input Selection

I learned modeling on AutoCAD and would like to use that type of input on my iPad. I can select from Apple Pencil vs mouse and keyboard but I am not able to select this type of input on my iPad. I can only make this selection on my pc. Any ideas?

I use the keypad on my iPad regularly, and sometimes use a keyboard/cover. I haven’t had any issues using them for my needs, although I appreciate that you may have specific uses that I don’t need for my work.