Hi Alex,
Try changing your scale in the 'Behavior > Scale' tab to "Manual" scaling. You will need 2 formulas for the min/max.
A = rounddown(min([range of all values]),-4)
B = roundup(max([range of all values]),-4)
These will give you your lowest and highest values being plotted, and round down or up to the nearest 10,000.
In the Divisions section below that, bind "Size of Division" to the following formula:
(B - A) / 2
Then in 'Appearance > Axis' tab change show only major grid lines, and change them to be the same color/size as your horizontal axis. You should get something similar to the attached result. Slightly different than what you're looking for, but the closest you'll get without custom graphics/layering multiple charts.
