GearSwap with commands?

I used spellcast with my smn and I had it set up whenever I cast a smn spell it would go to the macro book for the BP Commands.  Since Spellcast is no longer being supported and I tried to read up on gearswap is there anyway to do this function via gearswap and if so how.

In your precast function, add this:

function precast(spell)
    -- Other precast stuff here
 
    if spell.english == 'Carbuncle' then
        windower.send_command('input /macro book x')
    elseif spell.english == 'Shiva' then
        windower.send_command('input /macro book y')
    -- and so on
    end
end

ok thanks alot

One last question.  Say if I use the pet command release any way to get it to go back to macro book 1?

Amend the above example by this:

    elseif spell.english == 'Release' then
        windower.send_command('input /macro book 1')
    end