Selling from inventory

@HawksdaughterYea, great, that saves 0.5 seconds each time, great. Instead of wasting 5 minutes per 500 stack, I can do it in 3, how great

If you click on the item while in multiselect, they will ALL highlight, then you go below and click sell, they will ALL sell. Or you can click 2 or 3 to un-highlight if you want to keep a few. This does work, and only takes a few seconds per item. Again, i case I didn't explain it clearly,

Click multiselect

Click item qty. 

Click item again

What you want to sell should show in another panel above and attached to your inventory.

Click 'SELL' to sell all highlighted items.

But you shouldn't have to click on 300 plants, that's what I'm obviously not explaining right. Are they appearing above when you click on the tiny qty button? If so, then go back down into inventory and click 1 time on the item itself, the main square. That should cause them all to highlight and no more clicking except the sell button.

Since I must be terrible and not using the right terminology, here's a link that you might take a look at.

https://sherigr.com/gameplay-tips/sims-4-inventory/

@HawksdaughterOkay, how about this: Get 500 items and try selling 300 of them. Then you'll know what I mean. Afterwards, imagine doing that weekly for multiple item types

I actually do it all the time. Nearly all of my sims garden, some in a big way. At the end of a sim week or so, (sooner if he needs the simoleons) the crops get sold, and doesn't take much time at all, not nearly the time you're describing. Sorry, but if the game method the way it's set up to do this isn't working for you, something might be wrong in your game. I'm out of ideas.