[Nour el din Khalifa]

Haha wait actually there is a little more professional way

in the section of your markers follow this section to its very right you ll find a bigger marker pointing down

if you click and drag it to the place you please it will mark with the next number.

[Nour el din Khalifa]

Yes You can
If you double click a marker and change its name to another number (comment section)
you and reuse this number with the shortcut
i changed the 0 to 00
and reused the 0 and it worked

though i beileve there is a more professional way to make markers
but that may buy you a little more time.