Morning all.I've been tasked with creating a dynamic 500m x 500m grid table that we can stretch out along the X and Y axis which will position a grid line at every 500m interval. We use these grid tables to accompany topographical maps, these can vary in size so the dynamic table would come in handy and save a lot of time. I have a half decent understanding as to creating blocks and turning them into dynamic blocks, I'm really just struggling to inset the grid lines. I have attached an image of the current table that we use to give context. As you can probably tell, these take quite a while to adjust for out larger sites. Any help would be much appreciated. Many thanks, champs.J 

Your image looks like it might involve different linetypes, but I can't really tell whether that's just a pixelation/screen-resolution effect.  But if the linetypes are all the same, this is an ordinary Associative ARRAY of a simple square, in this case using one of the DOT family of linetypes:You can simply drag the appropriate "arrows" to change the number of columns and/or rows, or even both at the same time with the upper-right square grip.

Another option is the DrGrid utility (see the Tips and Downloads). It is not dynamic but you can simply re-run it to create a newer grid, with more options like minor/major grid lines, 3D grids, numbering, polar grids.