Can I create while another project is running

can I create another project or projects while another project is running?
Lightburn ver 1.0.04
Windows 10
Yora Home 6550 5.5 Watt

I open 2 sessions and create on one while the other is engraving, so yes you can.

How do you do that?
I tried it once and go error message.

Edit.
I’ll be damned,I just tried it again and it worked.
Thank you.