How to set a target line in a custom chart

Gumby

I have a chart created to show my added sugar intake (which I love having, this is the only app I've found that does this) and I have a target set for added sugar. My issue is there doesn't seem to be any way to get my target to show up as a line as is possible with other default graphs (like protein intake). Am I missing something? Or is the target line only available for certain nutrients? I'd love to see the target line be available for all custom charts!

djmbear

I would also like to see the target line in custom charts. It gets difficult to remember the targets for each of the nutrients I wish to create chats for.