Interface
Asciio input is from mouse and keyboard bindings, they are defined in a configuration files that you can change.
Asciio's interface is minimal by design.
keyboard bindings
This is the preferred method, and the fastest. The bindings are vim-like and which make the many bindings much easier to remember. See the Bindings section
mouse binidings
Although work can mostly be done using the keyboard, the mouse is still useful in some ccases (selecting in a TUI is difficult) and it even shines when creating new diagrams. See Working efficiently
popup menus
My least favorite way of using Asciio, it's slow and cumbersome for most actions. I try to reduce the amount of menu and sub menus.