position xyz attribute table representation

[derekpung]

we access the xyz attributes using x value: ps@xyz[0] y value: ps@xyz[1] z value: ps@xyz[2]

and access 'attrib' attribute using attrib value: ps@attrib

so I think it will be more consistent if the attribute viewer header for xyz values remains as xyz[index]

instead of separating to specifically "x", "y", and "z"

• we do not access the x value using ps@x

[danielcai1987]

fixed in Dev version