Hi and welcome to the forum.
Open Energy Monitor can only show data that is made available to it. If your solar system makes panel level data available, then OEM should be able to log and display it. If your solar system doesn’t make it available, then there’s nothing OEM can do.
I gather from reading the Data Scraping, How? thread that APS can do it. I have Enphase microinverters, which collect the data and make panel level data available via their website, but it’s not available to my OEM system. Only the total generation is. I don’t know what Solar Edge or any other firms provide.