End Google Ads 201810 - BS.net 01 --> Anyone can advice how to implement functions like the ones in the Character map utility to a font dialogue?

Im asked to develop the code page, the character "mapping" and in a font dialogue for extended function.

The problem i have is:
1. how to load the unicode or unicode subrange from the comp. i have no problem with loading the font.
2. how to create the data grid to show all the character with the effect of the font style and font type, just like the ones in the character map utility.

Thx in advance.