RFE 03 IsoChron show/hide button

[rgleason]

IsoChron Show/Hide Button is desired. (This button would set the value=0 for Hide and then set the value=[user value] for Show.

Location: Where should this be located???

HANS Wrote: "Suggestion: Right under view as a toggle function. Check mark when on."

Background: Set IsoChron ="0" under Settings to hide them.

"A real nice feature would be if you on top of the on/off feature could set if it should be shown at all per configuration."

Trudk45 wrote
I would like to be able to hide the iso distance lines that the router produces.
Sometimes it gets very blurry. Especially if you want to highlight several routes.

Also see #105

[rgleason]

In View > Settings Typical settings are
Route Thickness =8
Iso Chron Thickness colored "equal time" from start lines= 2
Alternate Routes Thickness is the black lines = 1 (can be changed to 0 so they disappear)
Wind Barb on routes Thickness 5

A user would like to be able to easily turn the "Alternate Routes" on and off with a button somewhere.