Numbered lists formatting while composing a message

First, I am loving the switch to eM from Outlook which failed constantly to properly sync with Gmail among other problems. Yay!

So, creating a numbered list. In most document editors, you can type all your text, highlight to create a numbered list, then use Tab to add a nested level with the existing text. Or you can start the numbered list, and tab when you want to nest another level and write that text, then shift+tab to go back up a level for the next line, etc. Like this:

  1. Usually this format is Decimal
    a) Tab 1 time, level is lower case Latin
    i) Tab 2 times, level is lower case Roman and so on.

Instead, I’m getting this:

  1. First line is a Decimal as expected
    1. Tab 1 time, another decimal rather than lower case Latin
      1. Tab 2 times, another decimal rather than lower case Roman

For the life of me, I cannot figure out why this is not working natively while composing a message. Do I have to separately reformat each list level to what I want it to be, or am I doing something wrong? Thanks for any help!