If I draw trendlines on the charts, does anybody know how I can make them stay on the charts...

[Jeff_Lang]

If I draw trendlines on the charts, does anybody know how I can make them stay on the charts even if the MT5 platform has to shut down due to a Windows update?

I got the following suggestion but it didn't work:

Right-click on chart (pic) and save your chart with trendlines as a Template. On any new chart - load that Template.

[William Roeder]

Shutdown the terminal before the update.