Title. I don't understand how it is possible. Shouldn't it be the opposite ?

My recording programs doesn't support timer. Or alteast, I can't take like livesplit and just put it on my recording programs, it's doesn't work. It's only accept browser source (And not every source work :p). So, can I do this instead :

Recording the speedrun WITHOUT the timer. Doing the split even tough it's not shown on screen. Put the split when I'll post the run (Not on screen, again)

Is it okay ?