check the QuickStart Guide to learn to load Controls and Macros to your device, take a DevNet Tutorial from the xAPI track (intro to xAPI and creating custom UI Extensions) The 'xfeedback' commands ...
Note: As of Rust 1.45 this crate is superseded by native support for #[proc_macro] in expression position. Only consider using this crate if you care about supporting compilers between 1.31 and 1.45.