I have been playing around a bit with this new feature, that was introduced in beta 2.2.1111. I had the impression from the announcement that this feature was supposed to be corrections for each cm93 cell separately, but have found that this is not the case.
I have tested charts
around Penrhyn, also called Tongareva in the NE Cook Islands
Pic 1. CM93 and the NZ raster-charts agree pretty well at this scale.
Pic 2. At the next smaller scale CM93 charts
, things are not so good.
Pic 3. Using the new tool I correct this (approximately).
Pic 4. Going back to the original larger scale chart, shows that the corrections has applied to this as well.
Obviously, a useful correction tool must apply to individual (faulty) charts.
Hopefully we can establish a list with reasonable corrections to apply to individual charts.
This new feature needs to be discussed. See this post as a start.....
To get started, tick the box att the bottom of ToolBox-> Vectorcharts, then"OK". Now tick the box att the bottom of ToolBox->Settings. Start to play with the right-click menu.