insert sequence of characters ((0,1,2) or (a,b,c) or (x,y,z))

I write codes for Computer Graphic which deal with a loth of vectors, matrix, index and coordinates it would be so awesome if I have multiple selections i can insert a sequence of charaters ie:

[ ]

[ ]

[ ]

with multiple selections inside the brackets I can quickly add :

[0]

[1]

[2]

or if you have multiple selection at the end of each word 'button'

'button'

'button'

'button'

'button'

you can turn it into

'button1'

'button2'

'button3'

'button4'

or turning:

'translate'

'translate'

'translate'

into:

'translateX'

'translateY'

'translateZ'

Thanks very much for your consideration