Thumb-Key

The drag-and-return feature is great (unfortunately the circular drag doesn't work at all in my phone). Am I missing something, but ... how do I capitalize a letter in the middle of a key with just the drag-and-return feature?

If I type a space followed by a quotation mark, the quotation mark replaces the space, making it difficult to type start quotes. And if I try to place an end quote directly after another letter, it will either modify the letter if it's a vowel to become an umlaut, or it won't type the quotation mark unless I first enter a space. If I disable spacebar multi-taps, then I can get around the issue by entering two spaces before a start quote and one space before an end quote, but with spacebar multi-taps on, the only way to enter a start quote is by pressing space, entering a quote, going back, and entering another space character before the quotation mark.

I am in love with thumbkey rn but my only grievance is that when I accidently swipe up on the space key it moves my cursor up a line and messes up my whole flow. I thought I saw that this function was removed in a previous version but my app is up to date and it still happens. Is there a secret setting I can't find?