Is your feature request related to a problem? Please describe.
No, I'm fine with the maintenance travel.

Describe the solution you'd like
If the first cart linked to a tunnel bore is a storage cart, it should act as an "hopper" medium for the bore, so that you could put boreheads, track or fuel and as it runs out the bore gets restocked by the storage cart.

Describe alternatives you've considered
no other alternatives found

Additional context
n/a

It does.