When ArchiCAD was first done a lot of the shortcuts used in Wordpad would work in ArchiCAD
This has changed over time but a some of them still do, here are some which come in handy
CTRL+Backspace – deletes the entire word instead of just one character
CTRL+5 - another way of doing Select all
CTRL+HOME - moves cursor to start of text instead of start of line
CTRL+END – moves cursor to end of text, instead of end of line