Hallo!! Thanks for comments and incentive Brothers :)
^Neptune yes man it will do exactlly as you posted.
/echo -a $maketok(Hello Pretty world,46) = H.e.l.l.o. .P.r.e.t.t.y. .w.o.r.l.d
but
/echo -a $maketok(Hello Pretty world,32) = H e l l o P r e t t y w o r l d

Gummo
yeah i have alread used $mid others times, i don't know wtf i was thinking when i dont see that, including it culd be used to make this identifier, i think i lost this point. but it was a problem in taht moment and after killing some neurons i made it :\
as you sayd, but ok :|

to use it now i like more in

/echo -a $maketok(Hello Pretty World,2) = Hello Prettyy World
/echo -a $maketok(Hello Pretty World,31) = Hello Prettyy World

Thanks again!!

Jah Bless´´´