Here is some code for you guys to play with...
fed_warpin - this is the button you press to call for your warpin ships. Feel free to change whatever you need to as far as tooltips and race names etc. And
wpnname = "Warp In Reserves"
tooltip = "Warp In Reserves"
verbosetooltip = "AUTOTOOLTIP-fed_warpin.odf"
//hotkeylabel = "GAME-HOTKEY-F12"
buttonslot = 1
range = 999999
needtarget = 1
targetlocation = 1
aitargetlocation = 1
targetalliedcraft = 0
targetalliedbuildings = 0
targetenemycraft = 0
targetenemybuildings = 0
specialenergycost = 300
replacementkeepowner = 1
replacementresetspecialenergy = 1
replacementinstantai = 1
replacementinstantcycle = 300
replacementmode = 1
replacement0condition = "unitedfederation"
replacement0class0 = "fed_warpinE"
overrideceasefire = 1
selectmode = 2
fleetcapfile = "all_cap_warpin.odf"
transferstats = 0
replacementmaintainorders = 1
classlabel = "replaceweapon"
special = 1
replacementregisterasnew = 0
replacementcreationtype = 1
overridesubsystem = 1
speakonattack = 0
attackspeech = 0
fed_warpinE - This is the code that triggers the warpin
classlabel = "u_ball_obj"
basename = "effect_empty"
race = "unitedfederation"
lifetimer = 1
avoidme = 0
avoidanceclass = 0
animation = 1
ignoreinterface = 1
hidden = 1
maxspecialenergy = 500
specialenergyrate = 0
weapon1 = "fed_warpinA"
weaponhardpoints1 = "root"
mapicon = "mapicon_empty"
invincible = 1
invalidastarget = 1
clearsfog = 0
perceivedneutral = 1
And finally.....
fed_warpinA - this is where you define what ships you want to warp in.. and how you want them positioned when they arrive
wpnname = "Warp In Reserves"
buttonslot = 1
targetalliedcraft = 0
targetalliedbuildings = 0
targetenemycraft = 0
targetenemybuildings = 0
warpin = 1
warpinspeed = 1500
specialenergycost = 500
replacementkeepowner = 1
replacementresetspecialenergy = 1
replacementresetcrew = 1
replacementinstantai = 1
replacementinstantderelict = 1
replacementinstantplayer = 1
transferstats = 0
replacement0class0 = "fCentaur"
replacement0class0randomweight = 20
replacement0class1 = "fAmbassador"
replacement0class1randomweight = 20
replacement0class2 = "fExcelsior"
replacement0class2randomweight = 20
replacement0class3 = "fNeworleans"
replacement0class4randomweight = 20
replacement1class0 = "fCentaur"
replacement1class0randomweight = 20
replacement1class1 = "fAmbassador"
replacement1class1randomweight = 20
replacement1class2 = "fExcelsior"
replacement1class2randomweight = 20
replacement1class3 = "fNeworleans"
replacement1class4randomweight = 20
replacement1class0position = 0,0,250
replacement1class1position = 0,0,250
replacement1class2position = 0,0,250
replacement1class3position = 0,0,250
replacement1class4position = 0,0,250
replacement2class0 = "fCentaur"
replacement2class0randomweight = 20
replacement2class1 = "fAmbassador"
replacement2class1randomweight = 20
replacement2class2 = "fExcelsior"
replacement2class2randomweight = 20
replacement2class3 = "fNeworleans"
replacement2class3randomweight = 20
replacement2class0position = 0,0,-250
replacement2class1position = 0,0,-250
replacement2class2position = 0,0,-250
replacement2class3position = 0,0,-250
replacement2class4position = 0,0,-250
replacement3class0 = "fCentaur"
replacement3class0randomweight = 20
replacement3class1 = "fAmbassador"
replacement3class1randomweight = 20
replacement3class2 = "fExcelsior"
replacement3class2randomweight = 20
replacement3class3 = "fNeworleans"
replacement3class3randomweight = 20
replacement3class0position = 0,0,100
replacement3class1position = 0,0,100
replacement3class2position = 0,0,100
replacement3class3position = 0,0,100
replacement4class3position = 0,0,100
replacement4class0 = "fCentaur"
replacement4class0randomweight = 20
replacement4class1 = "fAmbassador"
replacement4class1randomweight = 20
replacement4class2 = "fExcelsior"
replacement4class2randomweight = 20
replacement4class3 = "fNeworleans"
replacement4class3randomweight = 20
replacement4class0position = 0,0,-100
replacement4class1position = 0,0,-100
replacement4class2position = 0,0,-100
replacement4class3position = 0,0,-100
replacement4class4position = 0,0,-100
overrideceasefire = 1
//fleetcapfile = "all_cap_warpin.odf"
classlabel = "replaceweapon"
special = 1
replacementmaintainorders = 1
overridesubsystem = 1
speakonattack = 0
attackspeech = 0