harr, found an easyish way to make crafting more streamlined: keyboard shortcuts.
In __New_Screens.rpy around line 60 directly below "screen craft_screen():"
key "c" action Jump("myy_craft_item")
key "K_LEFT" action [Function(page_left_recipe)]
key "K_RIGHT" action [Function(page_right_recipe)]
Same file, around line 170, below "if current_item:"
key "t" action [Function(toss_item,current_item),SetVariable("current_item",None)]
key "a" action Function(add_material,current_item,myPlayer)
When crafting one has nearly never the need to move the mouse outside of the item list.
don't need the selected item? bash "t" to toss it
want to use the item? bash "a" to add it to a slot
happy with recipe and ingredients? bash "c" to craft it
want to change the recipe? use left and right arrow keys
On a PC it's rather convenient, imho.