PvZ2: Fast plant upgrade (new button idea)

I have lots of seed packets for plants and I don't mind clicking the upgrade button every time but I wish there was a button to upgrade your plants to the highest they can go. For example if my plant is lvl1 and I have lots of seed packets. And I click the button it'll go up to lvl 4 or the highest it can go with the amount of seed packets and cost the same amount of gold, it would if I do it individually. I feel like this will be useful in saving time. I feel like this button should be separate to the normal one and called "Upgrade to Max"