Hi there thanks for your post! Unfortunately it's not currently possible to increase the maximum cap on text size or line width in Lucidchart. However we are always looking to improve! Would you mind adding your thoughts in our Product Feedback Space? This feedback goes straight to our Product team for future consideration.

Thanks again for posting and I apologize for any inconvenience this causes. 

I'd like to have this capability as well.

Also it would have been nice to just upvote this request?

Hi @Jim C102! You can now upvote this request if this is something you’d like to see in the future. Feel free to explore our new product feedback section of the community and share your ideas with us.