SpydernHhound

Hi guys, I'm new to 3 d printing, love using Cura. I am trying to print a model, and after some teaching it looks like I can print some parts of it at a higher density. However all the videos, tutorials are all using an old version of Cura where the icons are totally different. Does anyone know where I can find information about using the current software how to to this ? I've tired using the modify settings with no luck, my print won't slice. Thanks for any help that anyone can offer