I know of no way to place macros on bars through macros, other than swapping entire bars, but I use my fairy skills manually and without mouseover etc. I just have two special Summon macros.
Summon 1
Code:
/micon "Summon"
/ac "Swiftcast"
/wait 1
/ac "Summon"
/hotbar pet "Embrace" Eos #2 #1
/hotbar pet "Whispering Dawn" #2 #2
/hotbar pet "Fey Covenant" #2 #3
/hotbar pet "Fey Illumination" #2 #4
/wait 3
/pac "Obey"
and Summon II
Code:
/micon "Summon II"
/ac "Swiftcast"
/wait 1
/ac "Summon II"
/hotbar pet "Embrace" Selene #2 #1
/hotbar pet "Silent Dusk" #2 #2
/hotbar pet "Fey Caress" #2 #3
/hotbar pet "Fey Wind" #2 #4
/wait 3
/pac "Obey"
I also have similar ones for Garuda/Titan/Ifrit. I have those macros placed on a sidebar and the fairy skills go onto one of my main bars with a modifier key.
Yeah, I have to click my target, but I can have Eos cast her skills while I cast broil