Access despawn tools via toolbar

[originalfoo]

Currently there are a a bunch of despawn tools in the Maintenance tab in mod options, that are somewhat cumbersome to reach. Would be great if we could access them from the snazzy new toolbar UI (and remove them from the Maintenance tab)...

We could repurpose the Clear Traffic button:

When clicked, it could hide the normal tool buttons to the left and instead show a list of things to clear:

What do you want to remove?

• Everything (would tick/untick all the boxes)
• Parked vehicles
• Cars and trucks
• Cims and cyclists
• Trains:
  (o) Intercity
  (o) Local
• Ships
• Aircraft
  ...etc...

At the same time, the two buttons in the grey panel would turn in to ✔️ (confirm) and ❌ (cancel) buttons. The ❌ would replace the despawn button so accidental double click would not despawn anything.

So user can now tick what they want to get rid of, and click ✔️ - boom!

Tagging #267 - despawn just trains.

Bonus feature:

• Mass exodus of cims from despawned ground-based PT vehicles (similar to what happens when you Reset Stuck Cims and Vehicles maybe)? 🤣

[kvakvs]

Replacing controls is probably not the cleanest approach, but we might place a new panel above everything that will do what you want. Or a tiny popup like snapping (to road, to grid, to angle, all, none) things do.

[originalfoo]

Could it be two panels - one for normal controls, one for the despawn controls, then just toggle visibility of both (only one visible at a time)?

[originalfoo]

Another way to do it would be to use icons - so, for example, we could have the vehicle restriction icons in there (but smaller, size of the toolbar buttons) allowing users to despawn the different road/rail vehicle types.