adding points to point group ending in specific number

[cobayashi]

im working on a project containing sounding shots (40,000 to be exact) and the client wants to see something cleaned up. is there a way to create a point group allowing only point number ending in a 0 and 5 to be shown?

[BIGAL]

Just edit the properties of the point group INCLUDE *0,*5 all done

[cobayashi]

this was the first thing that i tried and an error pops up stating point list not valid. I'm kind of at a loss at this point.