Hi Pieter thank you for posting in the Lucid community! Our sincere apologies for the delayed response on this thread--I wanted to follow up in case this answer may still be useful to you and to provide a solution for other users who see this thread in the future. 

Thanks for your request! We're always looking for ways to improve Lucidchart and your feedback is the best way for us to keep developing a useful and effective product. I've submitted your idea to our product team on your behalf and it will be taken into consideration when prioritizing improvements. 

For anyone else with a similar request: please submit your feedback using the Product Feedback community space to provide additional context and support for this feature request. We would also love to hear additional detail about your use case see an example of what you're hoping to achieve or learn about a workaround you've discovered in the thread below. Thanks for your request!

Good news to share on this thread - emojis are now supported in Lucidchart! Simply type : followed by the name of the emoji you want to use. For example, :hand will open a list of all emojis containing the word hand - I’ve demonstrated this in the GIF below.