In post Timeline you can display custom posts order by custom meta field.
You can sort the story timeline using following options:
1.) Post Timeline >> Content >> General Settings >> Post Date : Custom
2.) Post Timeline >> Content >> General Settings >> Custom Meta Key
See the below images for better understanding:
![](https://docs.coolplugins.net/wp-content/uploads/2021/02/order-by-custom-meta-key.png)