I want to add gender and make all other say their ??

Hi I see the layout of how to setup gender but.my question is this. 

I want only in profile male female shemale trans* etc. And the rest to say 

Their everywhere else. 

So let's say gender 1 uploaded photo it wilp say their photo 

Gender 2 uploaded video it would say their video. 

All genders I can make will all say their and not say his her etc. Only when user select gender it shows gender in their profile. 

Would then I change his herself himself to their .and only change male female and create only profile prose to whatever gender is the profile.gender ?

EXAMPLE

1|core.his|profile.male|core.himself

2|core.her|profile.female|core.herself|female

i can change to 

1|core.their|profile.male|core.their

2|core.their|profile.female|core.thier|female

3|core.their|profile.agender|core.their

4|core.their|profile.androgyne|core.their

or would it be 

3|core.their|profile.agender|core.their|core.agender

4|core.their|profile.androgyne|core.their|core.androgyne

5

6

7

8

9

etc.. as many genders as i want ?

also since there is core.their in phrases would i only have to add profile male, profile female, profile agender, profle androgyne to the phrases? if so how i see when we try to add new phrase it says 

Quick and Detail

if i select Detail has under it

Varname

____________________________

Text in English (US)

_______________________________

so in Varname i would write profile and in Text I would write the Gender Male Female Agender Androgyne

then Submit and Im all set do each one like this ??

is this possible ??

thanks for the answer in advance

Spiro