Upload an image, message, and music for your practice session in Webex

[grejacob]

With the ability of Uploading an image, message, and music for your practice session in Webex Webinars.   Can you please reply with Size Limitations, Best Practices (running videos through converters) and anything else to make this feature most impactful.

https://help.webex.com/en-us/article/nmcw9ofb/Upload-an-image,-message,-and-music-for-your-practice-session-in-Webex-Webinars