What is it about?
The basic idea is to allow the players to put more than one building order for one type of mines into the building queue.
The idea is simple:
Right now, in order to generate a building order and to build a mine, one has (1) to open the building menue, (2) leftclick on the mine in question, (3) move the mousepointer over the deposit in question, and (4) to leftclick the said deposit.
Now, the idea is that if step (2) or (4) are perfomed with e.g. SHIFT or CTRL pressed, the intelligent mouse cursor is activated. What does that mean?
That means that if the button (CTRL or SHIFT or whatever) is pressed and held, it keeps the building ready so you can drop it whereever you want. Be it a Mine, a Well, a Wheatfield etc. Just like some Star menu buildings work right now, if you have 2 or more in Star and you place 1, you can keep placing until you run out. That way it would be universal for ALL buildings and still give you full control and consistency over your buildings/building queue.*
How is determined on which deposits mines are built?
I think it’d be simplest if the closest deposits are chosen.
And that's it
Anticipated effects:
(1) People save time and have to leftclick less.
(2) Building slots become more valuable.
edit:
* Original mechanism changed due to Trigintiljons suggestion.