Hey I think an Alias is a very useful thing that ATC in FG dont use much, it's just "." and an alias of a whole frase. Because the existing one is pretty poor I've made some stuff you can check out.
If you're interested into using it you can basicly copy paste in the OR/Data/ATCmessages/alias.txt.
BTW in all the sentences there is the translation in spanish with an (.alias+e)
on=Hi all. Hola a todos. <aptname> ATC on line.
off=<aptname> ATC closing. Bye all. Hasta luego.
uni=monitor UNICOM frequency on 122.80 and have a nice flight. Bye bye.
unie=monitorice UNICOM en la frecuencia 122.80 y que tenga buen vuelo. Hasta pronto.
cm=<aptname> ATC available on mumble or chat. Contact me for ATC service.
cme=<aptname> ATC disponible en la mumble o chat. Contacte conmigo para servicio ATC.
--------------------------------------------------- ## GND / DEL ## ---------------------------------------------------
clear=cleared to your destination via flight planned route. <route> departure for RWY <assigned-runway>. Initialy climb {0}. Set squawk <squawk>.
cleare=autorizado a su destino via ruta plan de vuelo. Salida <route> para pista <assigned-runway>. Nivel inicial {0}. Responda en <squawk>.
vclear=cleared visual flight plan. RWY <assigned-runway> in use. QNH <hPa>. Startup approved. Report when ready for taxi. Set squawk <squawk>.
vcleare=autorizado plan de vuelo visual. Pista <assigned-runway> en uso. <hPa>. Puesta en marcha aprobada. Notifique listo a rodar. Responda en <squawk>.
push=your readback is correct. Report when ready for pushback and startup if needed.
pushe=su colacion es correcta. Notifique cuando este listo para puesta en marcha y retroceso en el caso de que fuera necessario.
pn=push back facing North and start-up approved. QNH <hPa>. Report when ready to taxi.
pne=retroceso aproando al Norte y puesta en marcha aprobados. Altimetro en el campo <hPa>. Notifique listo rodar.
ps=push back facing South and start-up approved. QNH <hPa>. Report when ready to taxi.
pse=retroceso aproando al Sur y puesta en marcha aprobados. Altimetro en el campo <hPa>. Notifique listo rodar.
pe=push back facing East and start-up approved. QNH <hPa>. Report when ready to taxi.
pee=retroceso aproando al Este y puesta en marcha aprobados. Altimetro en el campo <hPa>. Notifique listo rodar.
pw=push back facing West and start-up approved. QNH <hPa>. Report when ready to taxi.
pwe=retroceso aproando al Oeste y puesta en marcha aprobados. Altimetro en el campo <hPa>. Notifique listo rodar.
taxi=taxi to holding point RWY <assigned-runway> and report ready for departure.
taxie=ruede a punto de espera pista <assigned-runway> y notifique listo a salir.
ftaxi=via {0}, taxi to hp RWY <assigned-runway> and report ready for departure.
ftaxie=via {0}, ruede al punto de espera de la pista <assigned-runway>. Notifique listo salir.
stand=welcome to $arr. Taxi to stand at your choice and report engines shut down.
stande=bienvenido a $arr. Ruede a plataforma a su elección y notifique motores parados.
fstand=welcome to <icao>. Via {0} taxi to stand {0} and report engines shut down.
fstande=bienvenido a <icao>. Via {0}, ruede a stand {0} y notifique motores parados.
bye=flight plan closed just now and frequency change approved. Thanks for flying. Bye bye.
byee=Plan de vuelo cerrado ahora mismo y cambio de frecuencia aprobado. Gracias y hasta pronto.
----------------------------------------------------- ## TWR ## -----------------------------------------------------
backd=backtrack rwy <assigned-runway> approved. Report ready for departure.
backde=aprobado backtrack pista <assigned-runway>. Notifique listo salir.
backa=backtrack rwy <assigned-runway> approved. Taxi to stand at your choice and report engines shut down.
backae=aprobado backtrack pista <assigned-runway>. Ruede a plataforma a su elección y notifique motores parados.
hold=hold short RWY <assigned-runway>.
holde=mantenga corto pista <assigned-runway>.
line=line-up and wait RWY <assigned-runway>.
linee=entre y mantenga pista <assigned-runway>.
to=wind <winds>, RWY <assigned-runway>. Cleared to take-off.
toe=viento <winds>, pista <assigned-runway>. Autorizado a despegar.
land=wind $wind, RWY <assigned-runway>. Cleared to land
lande=viento $wind, pista <assigned-runway>. Autorizado aterrizar
vaca=vacate RWY by {0}. Taxi to stand at your choice and report engines shut down.
vacae=abandone pista por {0}. Ruede a plataforma a su elección y notifique motores parados.
continue=winds are <winds> continue your approach.
continuee=vientos <winds> continue su aproximación.
------------------------------------------------- ## APP/DEP/CTR ## ---------------------------------------------------
ri=hello. Radar identified. Expect RWY <assigned-runway> and {0} arrival. Report when ready for descend.
rie=muy buenas. Identificado radar. Espere pista <assigned-runway> para {0} llegada. Notifique listo para iniciar descenso.
rit=radar identified. Continue as filed and climb to {0}.
rite=identificado radar. Continue según plan de vuelo, ascienda a {0}.
rif=hello. Radar identified <alt>. Continue as filed.
rife=muy buenas. Identificado radar <alt>. Continue según plan de vuelo.
rip=hello. Radar identified <alt>. Continue direct to {0}.
ripe=muy buenas. Identificado radar <alt>. Continue directo a {0.}
tl=turn left, heading {0}.
tle=vire a la izquierda, rumbo {0}.
tr=turn right, heading {0}.
tre=vire a la derecha, rumbo {0}.
up=climb to {0}
upe=ascienda a {0}
down=descend to {0}
downe=descienda a {0}
ldown=program your descend to be leveled over {0} at {0}
ldowne=configure su descenso para alcanzar {0} a {0}
fdown=decend to {0} with a QNH of <hPa>
fdowne=descienda a {0} con QNH <hPa>
pd=proceed direct to {0}
pde=proceda ditrecto a {0}
fpd=proceed direct to {0}. Descend to {0} by QNH <hPa>
fpde=proceda directo a {0}. Descienda a {0} con QNH <hPa>
speed speed {0} KIAS.
speede velocidad {0} KIAS.
vec=do you have charts on board or do you need vectors?
vece=¿dispone de cartas a bordo o necesita vectores?
ils=cleared ILS RWY <assigned-runway> approach. Report stablished.
ilse=autorizado aproximación ILS pista <assigned-runway>. Llame establecido.
va cleared visual approach, RWY <assigned-runway>. Report on final with airport insight.
vae autorizado aproximación visual, pista <assigned-runway>. Notifique en final con campo a la vista.
loc cleared LOC RWY <assigned-runway> approach. Report when stablished.
loce autorizado LOC pista <assigned-runway>. Llame establecido.