I just saw your other post with the rainbow image — I get it now. Setting panoff to true won’t look right. Instead what you want to do is duplicate your 16×16 side by side (32×16). Then give it a CONFIG.INI with MOVEX=1 and PANOFF=FALSE.
A little more explanation about CONFIG.INI is in the FAQ:
https://www.ledseq.com/faq-category/game-frame/#post-1123
Let me know if that works for you.