Calender view: can I sort entries by color and stack them below each other?

Good morning,
I’m using spreadsheets for organizing a conference, and I have created a color-coded for my different stages. Currently, the different stages are not sorted and just appear in order I have edited them. By choosing the right order of editing the entries, I could sort some in clusters, but its a tedious process. Check the first few red, orange, grey and green lines in the top of the picture.

How could I easily sort the rest?

Thanks in advance :smile: