Chart selection

[jeminwy]

I have raster charts from Explorer and NOAA that overlap. Eg South Coast Florida. How do I preference one or the other. Currently the older explorer charts come up but for South Florida I prefer NOAA

 

[Johnny Electron]

It is rare to have a conflict like this but when the system has two of the same type of data (like two raster charts for the same area as in your example) the one drawn to the most accurate scale is the one displayed. You can not toggle between the two like you can the other formats. You could have two chart cards, having each chart on each card; then swap cards when you find it necessary.