TO DELETE CHAR: click delete, then "tab" on your keyboard 3 times then enter. This should also work for selling items I guess, but maybe another number of times you need to hit tab before enter.
BUG: if you minimize the potion macro window, you can't maximise it anymore. If you click the macro button again it will disapear. If you try to open macro window again, it will "open" as minimized. And you're still unable to maximise it :\
"Probably wont add one, don't know how, but if you know where I can learn then please tell me." -> I'm not sure how well suited this is, but you could probably save it all to localStorage, then you load it from localStorage every time the page is loaded. Also, if you hold down enter on the buttons it clicks them "automatically" very rapidly.
If you manange to activate the infinite heat glith, try to "heat up" an ultimate capacitor. it should get damaged into negative sell value, then after about -2,3 trillion it will turn into 2,3 trillon. This takes a couple seconds. sell the ultimate capacitor and repeat!
Sorry for spamming the comment field! This picture shows my current setup (but more importantly how I gain my power: see the sell price!)
http://gyazo.com/aa3ffa363c2590676cc1d605913eb5cf.png
Hardcore mode could be an interesting challenge. Maybe soon :)