Keil: how do I delete a project

Can't find how on the screens.  Need to do it because of trying examples like, blinky, before importing my MBED project. Want to delete those experiments when done.

Thanks!

I'm using the LPC1768 target which look to be obsolete.  What's a good newer one to migrate to?  Thanks again.

One more thing.  When importing a library (source code) from MBED into Keil, how do I deal with the .h files used to access the library functions?

Mbed/Keil/ARM/Github is enormous.  Might seem simple to those of you that grew up with this machinery ... your documentation is extremely important to the rest of us.