Select residue graphically. Click on an residue to select or deselect. Drag with the mouse to select multiple residues simultaneously. Shift-drag deselects residues and ALT drag inverts the selection state. In numeric mode the positions can be entered separated by commas. To restrict the selection onto one chain prepend the residue numbers by the fieldname followed by a colon. Different chains should be separated by semicolon. Ranges can be selected with dash. For example: VL:3,5,7;VH:9-11,13