Hello Vicente.
In years i neved had the time to learn it properly.I've tried,but i was not able to obtain much from MCUXpresso,so i got back to KDS ,being aware that KDS is considered old,if not obsolete .
Just an example, using MCUXpresso with a very small processor as MKL03Z8 ,shows that there is not a peripheral configuration tool(it exists in KDS),and the code generated for an almost empty project almost fills the available Flash.
Have a nice weekend
Diego