Feature Request - Clippy - Type index to select and paste from 'AutoCompSelect' list

[robertlzj]

Currently, type number of index without select anything in editor, will actually write the number into editor and select (but not paste) corresponding item in the 'AutoCompSelect' list.
And, type number of index with something selected in editor, will replace the the selection with the number and close the 'AutoCompSelect' list.

Maybe, type number of index will paste corresponding item in the 'AutoCompSelect' list, is nice.