Hmmm... In general, the closer you "zoom in" the more certain objects get "revealed," otherwise navigational objects such as Channel Marker locations (or the density of them) is up to the chart maker such as C-MAP/Navionics/Etc.
If you go to HOME > Settings > Vector chart we just have the ability to turn on /off globally some navigational aides and Chart Object size.
Hope this helps, :sail
- Maggy