Point at a file
When several files could match, name the one you mean.
Type @ and the start of a file name. Koma lists files in the folder. Tab or Enter puts that file into your request.
Click here, then use the arrow keys or the space bar
A sample of the terminal. Nothing here is your conversation.
Type @ and a few letters of the file name. Koma lists matches. Tab or Enter completes the one highlighted.
You can also type the file name in the sentence. @ is the faster way when you do not remember the whole name.