You can make simple alias in your init.txt or any script for that matter.
alias s1 send @others /ma "Stone" <bt>
alias s2 send @others /ma "Stone II" <bt>
alias s3 send @others /ma "Stone III" <bt>
alias s4 send @others /ma "Stone IV" <bt>
alias s5 send @others /ma "Stone V" <bt>
alias s6 send @others /ma "Stone VI" <bt>
if you do //s5 all other instances will do a stone 5 on the battletarget
or
alias hm send mulename /ma "haste" Daedroth
if you do //hm the mule will haste Daedroth
all this works with the use of the SEND addon
ive had issues using the send command to cast spells that use "II or III" possibly Iv or V too
seems to be the II messes up the quotes or something as though it was written in a lua script and had a apostrophe or soemthing
so
//send name /ma "dia II" <bt> will not work, however
//send name /ma 'dia II' <bt> might work, however gearswap will not swap gear if you type it this way
theres a few spells that are wonky like that with send to the point where i just made an actual gearswap command to make it work like //send name //gs c Command
with a script in the individual lua.