Pretty much as the title really.
It would be really helpful to be able to view the OSM grid on the C.T map whilst planning routes to bag Veloviewer squares. Is this possible at present via a setting or workaround please? If not, please consider adding it to the list of enhancement requests - I bet there is one!
The process I have to use now involves printing off a VV map, drawing the squares in pen in the blank areas, then juggling between C.T, VV and my bit of paper. Lack of such rigour can result in missed squares and a return visit - not the end of the world I suppose.
I've indicated below that the post is about one of my saved journeys, although it applies to several. I've named an example so you can see the intricacy of routes needed to capture clusters of squares.
If you're not aware of the pursuit of VV squares, the link below explains. For me, the motivation is to visit new places and new lanes. I've made some delightful discoveries along the way.
Edited to add, I just noticed in the link above that VV shows the grid at a zoom level of 14. It's implicit in my request that the grids in C.T and VV be equivalent.