That is bad news.
I have been recommending this card to many people without being fully aware that almost all the ports are crippled making it very hard to use this card for general development.
BUT You could make something very positive out of this
Your most powerful MCU card is $ 39 https://shop.mikroe.com/mcu-cards/v7/easymx-pro-v7-stm32-stm32f746vgt6
This NUCLEO with a lot of more power is only $23http://www.mouser.se/search/ProductDetail.aspx?r=511-NUCLEO-F746ZG
If you make quite a new motherboard that fits NUCLEO
and all the 144 pins available on the NUCLEO Morpho Connector
and combine that with all the nice and great connectivity that https://shop.mikroe.com/development-boards/full-featured/easy-boards/easymx-pro-stm32
has, then you have the best ARM development platform, I guess.
I would also suggest that you figure out a way to use STM32CUBE - it is a revolution, but could be
Some years ago PIC had the momentum,
Now I think that ST has the momentum, very much due to CUBE
On top of that: The smartphones make these ST processors cheap and super powerful.
Just a couple of ideas
Looking forward to an improved ARM approach !