Hi, all.
There are occured few questions while customizing my Power Apps Self-service portal. So, I wonder:
1. Is there some customization to make subgrids on portal web page editable (I`ve already configure it in Dynamics CRM 365, v.9.1 for Salesorderdetails (Order products) entity records and, as I think, set all helpful related metadata options for this subgrid on the Salesorder (Order) entity form record), but it doesn`t work. I didn`t find some more information in MS Docs about metadata configurations for subgrids, so I have doubts about possibility to configure it that way. So, editable grids. Is it impossible to make them for my portal or am I doing something wrong?
I`ll attach screenshots beneath.



2. I want to assosiate certain Order products related record (new or existing) to new Order record, which I creating just right now. So for this goals I desided to add subgrid metadata configurations to my Order entity form record in Insert mode to show the subgrid when creating a record and enable two standart View actions: "Create" and "Assosiate" for apropriate subgrid, also I`ve made the same customizations for the same entityform in Edit mode, but such settings works only for web-page with entityform in Insert mode. I guess, that`s because system doesn`t know with what certain Salesorder record should be assosiated new or existing Order products record, if the Order record doesn`t exist for this moment for portal and CRM (cos we only start creating it).
If I`ll chose to configure the Entity reference settings, I`ll assosiate the Order record with only one certain record, but I can`t assosiate it automatically with few Order products records which will be different for different Order records. So, if I`ve understand this part of article right, this configuration can`t meet my requirements, so I can`t achieve my goals. So, is there some other way to configure it or what am I doing wrong in this case?
If I`ll configurate creating of a new Order record with web form, not with entity form, on my portal - will I solve this issue?
I`ll attach few screenshots beneath.






3. I need to display an entity image on my portal entity form for Product records. Can I configure this and how? Can`t find out how should I do this.
Thanks for answers!
I will be appreciate for any feedback.