Simple Bundles & Kits

This app wants to be good and I think it could be good, but there are at least three major issues. #1. When you go to add products to your bundle, you can't "select all" you have to select each individual product, and keep scrolling down to reveal more products to add. So when you have many products you want to include in the bundle it takes FOREVER to scroll. And on top of that, you can't simply use the up and down arrows to scroll, you have to click on the scroll bar and it is hit or miss if you land on the next product. It isn't a smooth scroll, it's sort of all over the place, so you miss products and have to go back and check and re-check. And the products have ALL of the variants expanded and there is no way to minimize them, if you are just selecting all anyway, so this makes you have to scroll every product and every variant to manually click on each individual product to add to the bundle. There really needs to be a way to add an entire collection to choose from for bundles, and a select all, and these other scroll fixes to make it more convenient. Taking an hour to create one bundle when you have many products is just not feasible. #2. When doing the BYOB, you can only reduce the price by percentage, instead of a fixed amount. This makes it difficult when you want to have a discount for variants, if a variant is vastly different from another in price. Giving out a huge discount on more expensive variants, but then a little one on the less expensive. It's a simple feature that should be there, but it isn't. #3. You can't isolate variants easily, for products that have the same variants. So if you have 10 products with 10 variants, you can't simply select the variant you want to include, you have to manually go through each product and select each variant individually. This just really is not a good app if you have many products you want to include, or many variants. It's insanely time consuming.
I did mention weeks ago that this should be a feature, and it hasn't been implemented, so not sure if feedback is even taken into account.