GUIs with Databses(Creating a program similar to Microsoft Acces from Scratch)

I've finally managed to find a unique database software. It's got a GUI Designer in it and one of the ways it's compatible with databases is via Python so it suits me perfectly.I plan on using MD Python Designer -labdeck.com/python-designer- but I'm not too sure yet. I was thinking of combining these features together to create something along the lines of Microsoft access. I will most likely be taking out all unnecessary features to save time and also be able to add in some new features which will provide more useful. My question is what new features should I add that will make the UI unique and all-around better.