Hotstrings

GroupAdd Office, ahk_exe WINWORD.EXE
GroupAdd Office, ahk_exe POWERPNT.EXE
GroupAdd Office, ahk_exe OUTLOOK.EXE

#IfWinActive ahk_group Office
    :o:]deg::!=\degree !=
    :o:]degc::!=\degc !=
    :o:]degf::!=\degf !=
    :o:]ian::!=In_x Al_(1-x) N !=
    :o:]ain::!=In_(1-x) Al_x N !=
#IfWinActive

:o:]deg::°
:o:]degc::°C
:o:]degf::°F
:o:]ian::Inₓ Al₁₋ₓ N
:o:]ain::In₁₋ₓ Alₓ N