shifting a group of markers or positions at once

[routeconverter]

Hello Routeconverter team, I am located in China.

Hello ShuBen to China!

Would it be possible to mark a certain number of positions in the right side list and then open a windows to input an offset value X & Y to recalculate longitude and latitude to correct these track positioning or the complete track? Or alternatively, select a group of markers on the map area and drag them at once to a more accurate position?

In the Google Edition, I've implemented the following features:

• An option Extras/Options/Maps/Fix map for China to automatically transform the coordinates of maps in an area longitude < 72.004 || longitude > 137.8347 and latitude < 0.8293 || latitude > 55.8271
  
• Support for dragging all selected positions on the map
  

Unfortunately, the Open Source Edition does not support both of these features. But this could be changed... I'd need your help for that.

Any chance to implement the above mentioned function/window? Or any easy trick or hidden function?

There's no easy trick. Would you be willing to test? And provide a test track along well know rivers or streets or landmarks to check if the map transformation works correctly?