Orion Maps - Grid questions

There was a previous post about this but no answers, so I'd like to post again

I'm trying to set icons in certain positions but have several issues.

1.  The grid spacing is too large.  Can that be changed?  How?

2.  Can the grid spacing be turned off?  If yes, can it be on a per map basis?

3.  You can manually enter the x and y coordinates, but it doesn't work for negative numbers.  Is there a bug fix for this?

Looking forward to getting my first post answered.