save camera settings on selection to avoid different result when re-projecting the selection 2d screen points transformation (does not compile because of canvas.h cyclic dependency)

data/layout.xml

@@ -1087,11 +1087,11 @@ Here's a list of what's available in this release.
           <button-custom id="btn-layer" width="50" height="50" margin="0 0 5 0" thickness="1" border-color=".1" pad="2">
             <image path="data/ui/layers.png" width="100%" height="100%" align="center" justify="flex-end"/>
           </button-custom>
-          <!--
+          
           <button-custom id="btn-grids-panel" width="50" height="50" margin="0 0 5 0" thickness="1" border-color=".1" pad="2">
             <image path="data/ui/grid.png" width="100%" height="100%" align="center" justify="flex-end" mips="true"/>
           </button-custom>
-          -->
+          
         </border>
         <!-- side bar -->
         <node height="100%" dir="row" shrink="1">