Multiple line macros using the macrotext attribute of a SecureActionButtonTemplate?

[Nightness]

I'm looking to make a multi-line macro (and have it work) in my MagnetButtons addon, that uses SecureActionButtonTemplate. I would rather not do what addons like VuhDo do and create actual character macros to do multi-line macros (I assume that's why they are there). Is there any way to have multiple macro calls in a single macrotext attribute?

Edit: What format do I use for newlines, that works in this case?

/cleartarget
/stopcasting
/script ToggleGameMenu(); StaticPopup1:Hide()