how to Use of Mark up tool to Optimize Level ????

hi

i just what is the use of Mark up tool ,i was much excited for it, since after exploring it i was not impressed by it as with i am only able to put note into part or asembly.

so need your advice what you think about it or how can i use it  optimize 

Regards

raunak

SolidworksSolidworks 2019 Beta