Adding custom fetchXML to a SubGrid - not officially supported after Dynamics CRM 2015 Update 1

[D365Ideas_Admin]

Custom fetchXML is a useful feature to fetch data using fetch XML query and bind it to Sub Grids.
But this feature is no more working after dynamics CRM 2015 update 1 (turbo forms).
Can we get it back?

thanks,

[hasintha]

Yes, This was a useful feature. Please add it in v 9.

[RHOU]

there appears to be a work-around but it really is much more complicated. 

please make a supported simple version to achieve this!

it would also allow a rollup view of Opportunities in the Account Hierarchy: 

this is possible with the Advanced Find (Account UNDER "Apple"), but there is no way to put this on the Account form and dynamically replace the account id (Apple) with the one of the account I have currently opened. 

https://sank8sinha.wordpress.com/2020/01/07/adding-filtered-views-in-uci-in-dynamics-365-crm-finally...

[RHOU]

please vote for this more detailed feature wish here: 

Binding FetchXML to Subgrid with reference to RecordID to filter Subgrid dynamically