[Chimera-users] question

Dear chimera users, 1) I want to have electrostatic surface of my protein in chimera. To this, I used *Tools... Surface/Binding Analysis... Coulombic surface coloring* A new window is opened, but apply bottom is inactive. 2) There are ray command in pymol to obtain better image of molecular structures. Is there a similar command or utility in chimera? Any help will highly appreciated. Best wishes, Leila