Is there any way to add words to my writing studies?

For example, I have had 黑 in my study list for ages, but it never asks me to write it. I'd like to add that character to the 'writing study' list.

I mostly use the iPhone version but sometimes use the website as well. Thank you for any suggestions.

Hi Twill, do you mean that it's been pending in a list and hasn't yet been gotten to because of all the other words that are before it to be added, and that you would like to bump up the priority? If that's what you mean, you could make a custom list with your high priority words in it, and then study that single list (through the advanced study on the iOS app, or through the "study a single list" link on the web version).