I should be able to insert Tabs into my QText

(User Story, Investigate , Priority: High, Test Status: No automated tests yet , Reported By Bad Link: Thing 3y284oe not found, )
Summary: Not actually clear that this is possible, but it's worth investigating.
This is mainly for "code" -- in particular, for HTML tags.
Currently, all conventional forms of using the Tab itself are taken: Tab and shift-Tab navigate the form; ctrl-Tab navigates the browser tabs; alt-Tab navigates OS windows. Could we do Esc-Tab? (Wouldn't work on mobile, but Tab isn't available on mobile in the first place.)
Can we use Tab? Does Tab render properly in textarea? If not, this is kinda pointless.