It would be nice to be able to use a select amount of gems to reduce time to build or upgrade units. For instance a upgrade of 5 days would cost around 683 gems to complete. I only have 43 gems but I did some math and each gem would average around 6 hours. So a option to choose. To complete upgrade or reduce the amount of wait time I think would be very welcome to all the players with multiple upgrades going on to split the cost of gems and reduce time and to the people that dont have enough to complete a upgrade.
