No, you'd need to tap the macro key twice.
So Alt 1 could be:
equip this
equip that
equip the other thing
equip more of this
/echo Cannonball setup
/macro book 2
and on macro book 2 alt 1 would be:
equip other stuff
cast stuff
wait
/p I'M FIRIN MAH CANNONBALL <t>!!!
So yeah, you can't have 2 macros with 1 keypress, but you can spam alt1 20 times if you had a macro that spanned books 1-20 with lines to hit the next book in each.
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