I did like this:
https://rtfm.modx.com/extras/revo/migx/migx.tutorials/migx.use-resource-specific-mediasource-and-multifile-uploader
It's work!)
But how to load grid automatically?
Not by clicking the button 'Load From Media Source'.
[ed. note: i_0leg_i last edited this post 11 years, 2 months ago.]