Is it possible to set the height of an Event in a Timeline?

Hello everyone

I would like to know whether or not it is possible to set the height of an event in a Timeline based on a specific value?

For example:

I have a box that has a specific size which can be filled. I can of course set at which times it is filled with objects but based on the size of the objects I put into the box, I would also like to know, how much space is currently full. This would require me to make the height of the event based on the space the object takes.

Thank you very much for any answer in advance.

Greetings
Dennis Hardy