Item stacking is officially working and bug-free from what I can tell. I haven't added a way to split items up yet but it will definitely be updated soon. I've now included a way to play around with the character customization. I will include all the controls in the "read more" section below.
I've included some screenshots of the code I wrote for the script to move items between each slot. There are 2 more screenshots below this one.
Fun stuff. I honestly do enjoy programming. Maybe too much for my own good. But the results are spectacular so far.
I'll explain the controls to play around with character customization here:
Step 1. Press 'TAB' to open the inventory screen.
Step 2. While holding '1, 2, 3 or 4', press the 'RIGHT' and 'LEFT' arrow keys to switch options.
Don't worry, I will have a fancy character customization menu down the road. I just wanted to implement the editing of the character now to show it off a bit and to provide myself with a way of testing it without hard-coding the variables each run.
Another bit of news, I've added a download page for the game: http://www.seabassandgazellestudios.com/download.html