You can right click (context menu) on the markers to add them as a possible start point, end point, or modify their priority. Options and Priority have documentation in their tooltips.
Options
Priority
Disclaimer
Information shown on these maps is compiled from numerous sources and may not be complete or accurate.
While the "the authors" and its suppliers have attempted to provide accurate information on our mapping, which we hope you find useful information will always be accurate and up to date. The "the authors" cannot be held responsible for the misuse or misinterpretation of any information and offers no warranty guarantees or representations of any kind in connection to its accuracy or completeness. The "the authors" accepts no liability for any loss, damage, time loss, missed objective, or inconvenience caused as a result of reliance on the mapping.