Wanted to ask about the "offset" option on MAs. The default option is set to 0. If I change that to 1 and also choose "close", does it imply that I am looking at data that is 1 candle closed? Attaching the screenshot. Thanks!

As far as I know, when you offset a moving average, you are shifting the curve by the offset period mentioned. 

For example, if you are plotting a 20ema with 0 offset value, you get the regular 20ema plotted.

But when you give an offset of say 5, it will shift your 20ema graph to 5 periods ahead. The value doesn't change, but the graph gets plotted ahead. 

Similarly, for a negative offset value, the same graph gets plotted backwards.

Here,  

RED line denotes 5ema with offset -5, 

BLACK line denotes 5ema with offset 0 

GREEN line denotes 5ema with offset 5.