Many missing things from line charts - [Fixed]

The ability to add columns to line charts is seemingly not there? Removes ability to have charts with more than one line (like many of the official JetPunk charts). I don't think this has always been there, and maybe this was recently removed? It stops charts like this from being made:

this featured chart

Multi line charts can still be made by importation (or by switching to bar charts, adding columns, then switching back), but it doesn't make sense for this to be removed, so i think this is a bug

Further more, the number type, the linear/log function, the axis labelling, and much more is not appearing on Step 3 - Design, but all show up when designing bar charts