If you’re eager to showcase Shorts in your YouTube Gallery widget separately from your regular videos, you’re in the right place!
This article provides straightforward solutions tailored just for you
Workaround 
Create a dedicated playlist for the required Shorts and include a link to this playlist in the Source Group section.
To get the link for your YouTube playlist, right-click on the playlist name, and select “Copy link address.”
Workaround 
To display only Shorts in your widget, please follow these steps:
If you want to display only Shorts, replace UC in the channel ID with UUSH. To display only videos, replace UC with UULF
Examples:
UUSH9LQwHZoucFT94I2h6JOcjw- only Shorts
UULF9LQwHZoucFT94I2h6JOcjw - only videos
Create a link for the playlist: https://www.youtube.com/playlist?list=Channel ID. Replace Channel ID with your own channel ID resulted in the previous step
Example: https://www.youtube.com/playlist?list=UUSH9LQwHZoucFT94I2h6JOcjw
Add this link to the Source Group section. YouTube Channel URL field should be empty
Guys, was this article helpful? Don’t hesitate to share your experience in the comments below