There are two different views for memory in Eclipse:
- Memory View
- Memory Browser View
Each has its pros and cons. For 'embedded' memory views the 'traditional' rendering can be used:

Then you can specify the cell size, or the radix (signed, unsigned, hexadecimal, ...)

As KDS is using GDB, you can use the normal GDB command line debugging. For this, open the corresponding arm-none-eabi-gdb console:

help breakpoints
gives you a quick help. Have a look as well at Debugging with GDB
For example 'break main' will set a breakpoint at main:

I hope that helps as a starter?
Erich