[Paraview] Basic Time Plot Questions

[D]

Hi ParaViewers,

I'm new to ParaView and am having trouble figuring out these two
things. (I'm using version 3.6.2)

First question:

The documentation talks about being able to select multiple files by
holding down command and selecting the files. Or using shift, as one
would most file dialogs. I've had no luck with this using ParaView via
VNC on a Mac (Chicken of the VNC) and also on a Linux box via X. If I
can't figure out how to do this, I'm going to have to put all my data
in one file, which may be a nightmare.

Second question:

I suppose this question may be irrelevant if I can get the first one
answered, since I think the file-naming will take care of the time
steps (?). At any rate, I'm wondering if ParaView can make an
animation of data in a CSV which is set up like this:

timestep, x-coord, y-coord, z-coord, intensity

The z-coord is always zero since I'm doing a 2d problem. I can plot
the points using the Table to Points filter, but I can't figure out
how to get ParaView to recognize the timestep column as the timestep.

Any assistance on either of these questions would be most appreciated. Thanks,

--Danny