Faster building tools

[kmcnaught]

It would be nice if there were some shortcuts for building more quickly.

One idea is to have a feature which finds connected blocks of the same material and grows them upwards by one block. Alternatively you might have a building mode where you are building continuously, but blocks only get placed on the top of other blocks of same material. E.g. you build the first layer by hand, then can wave your eyes around and grow upwards.

Obviously needs some thought, details may vary...

[kmcnaught]

another suggestion from a user was a 'bridge-building' method, e.g. place block "in front + down one."