Troop and spell upgrading!

There seriously needs to be thought put into having the ability to upgrade more than one troop at a time. At this point in my game I am a high level TH 8 player. I have two teslas that need one more upgrade and one archer tower that needs one more updrade. All other structures are maxed out for the level. I have kept my lab busy the whole time at TH 8 level but still have 85 mores days worth of upgrades left for regular troops and dark troops and spells. The number of troops and spells at this level, especially ones with multiple upgrades per level makes it impossible to keep up with the pace of other upgrades. I have 5 builders for other upgrades so this is worse for me than for others players with fewer builders. This could be fixed a number of ways. The simplest would just be to allow two upgrades to take place at once. The other way could be to allow spell upgrades to take place in spell factory seperately from the lab and mabye add a dark lab for upgrading dark troops seperately as well. That would allow three upgrades at one time. As you add more troops and higher levels of existing troops this problem will only continue to get worse.The other option would be just to decrease upgrading time for troops or spells to allow the pace to keep up. Thank you!