Is your feature request related to a problem?
No, not related to a problem.

Please describe.
I seem to find myself clicking on the GathererLite minimap butten, then deselect mining so I can see there is actually a mining node present on the (mini)map.
Which I find a quite tedious process to move your mouse over to the minimap and then deselect the mineral, check your map to see if a node is truly there, then after you have mined, select minerals again to turn the GathererLite back on.

Describe the solution you'd like
It would be nice to see a keybinds, which you can set for yourself in the Wow Menu :: "Key Bindings" > "Addons" (left menu - bottom) > "Key Bindings".
which lets you show/hide tracking of for example minerals.
Whenever you mine an icon it is shown on top of a potential node, so I am not actually sure if there is a real node underneath it. So that's why I'm desecting and re-selecting in the minimap icon.

Additional context
The place to set the keybinds as mentioned above via:

Wow Menu :: "Key Bindings" > "Addons" (left menu - bottom) > "Key Bindings".

sounds like your using an older version of the addon

I'm using GatherLite-1.3.2-classic.zip

then the nodes should be hidden automaticly when closer than 70 yards on default.

Thanks for the tip! Playing around with the distance (slider) at the moment.
As far as for me this case can be closed