Trouble with adding items to a box to spawn in

Want to add a few stacks of material to a box to spawn in. Spawn a box and it will have multiple stacks all ready to go. Issue is we have to add the items seperatly. Unable to enter in the stack once, instead It is making us enter the items in how ever many times we have to , to get the stack size we want. Are there any workarounds or tricks to enter the line once with the quantity we want. We are using the simplified unreal engine , the dev tool kit.

There’s a thread on the main ark modding forum all about what you’re trying to do.