Page 2-278 of the Dec 2015 edition of the Advanced Data Formatting Guide https://atgsupportcentral.motorolasolutions.com/content/emb/docs/manuals/6968005a.pdf gives the option to send a custom key. There are options to activate the <CTRL>, <SHIFT>, <ALT> and <GUI> keys which you then follow with your key of choice. If I understand this correctly this allows you to send the keystroke of <CTRL><F> or <ALT><TAB> or <GUI><K> or any other desired combination. However I have tested this on a DS4308 with the latest firmware and it did not work. So although this features looks like a promising answer to our problem it now appears we have to wait for the scanner firmware to catch up.
Zebra - any comment to add? And when can we expect this feature to appear in 123Scan?