draw surf show [on|off|tog]| draws surface of currently selected pdb object(s).
| draw surf createForPdb [N]| creates a surface mesh for fully-selected pdb, with resolution of [N = 4] angstroms.
| draw surf createForChains [N]| creates a surface mesh for each selected chain, with resolution of [N = 4] angstroms.
| draw surf wire [on|off|tog]| sets wireframe rendering of selected surface mesh
| draw surf wireColor <on|off|tog> <r g b>| sets wireframe color keying for selected surface meshes
| draw surf trans [T]| sets global transparency of selected surface meshes (range: 0 - 1)
| draw surf incTrans | increments transparency of selected surface meshes
| draw surf decTrans | increments transparency of selected surface meshes
| draw surf transColor <T> <r g b>| sets transparency level and color keying for selected surface meshes
| draw surf back [on|off|tog] [r g b]| sets backside rendering state and color for selected surface meshes
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