How to implement large nesting of migx_tv in modx revo?

Question

MODX

Please tell me how to implement a large nesting of migx_tv.
For example, create an additional migx field, connect another migx to it via inputTV and display getImageList via value - everything is clear here, and it works without problems.
But how to withdraw a large nesting? for example migx-migx-migx simply outputting value is no longer possible. The third day I can not dig up the info.
I create Migx via json. I don't know how to use migx interface.