So for anyone who wants to mess around with it, you can check it out here!

It's a .xlsm - macro-enabled excel file. You need to enable macros if you want it to work as best as it can. I'll ofc be updating it for 3.2 and uploading a better version then. This is more like a beta lol

As far as a visual way of arranging buffs, Excel has an incredible amount of columns and rows. You can narrow them up and treat each column as 1 second, if you wanted to, or even treat each one as 0.5 seconds. You'd be filling in blocks of them, and merge+center does wonders even when you have a shitton of columns being used.