Am I able to double post in a thread created by myself ?

I want to add a separate post from the last post by myself. It's not double posting but differentiating
new information from answers given to other peoples posting. Can I do this ?
I notice sometimes it works ( time interval? ) and sometimes it doesn't.

 

I waited for over an hour (twice) :/

 

Ah thanks for the info ! it's this post https://www.beamng.com/threads/c-t-k-the-forbidden-fruit-project.67739/page-13#post-1149355