OpenCycleMap

Yes, do the following steps:

1. Navigate to Settings / Basemaps / Custom basemap 1 settings
2. enter the following:

[ Moderator Note: Please post code or markup snippets between backticks or use the code button. ]

Tiles URL: http://tile.opencyclemap.org/cycle/{z}/{x}/{y}.png

Attribution: © <a href="http://openstreetmap.org/">OpenStreetMap contributors</a>, <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>

Min-Zoom: 1
Max-Zoom: 17
TMS: false
Support for subdomains: no
Enable continuousWorld?: false
Enable nowrap?: false

3. Navigate to Settings / Map Defaults / Available basemaps in control box

4. check the checkbox “Custom basemap”

5. Navigate to Settings / Map Defaults / Names for default basemaps

6. Change “Custom1” to “Open Cycle Map”

7. Save Settings.
Done.
Afterwards, Open Cycle Maps is available on each marker and layer map within the layer control box.
regards,

Robert