Magento 2 How to add custom sort by option

[chamal]

I need to add an additional filter based on created_at attribute for sorting product list by latest product. I tried to figure it using below file
app/design/frontend/Vendor/ThemeName/Magento_Catalog/templates/product/list/toolbar/sorter.phtml
but how can add our entity id to getAvailableOrders() ?

[joekatgerman]

I've been trying to remove the Sort by "Position"  option, but i can't seem to get the job done.

Do you think you have anything that can guide me in the right direction?

[mykhailo7]

You can activate Created At in sorting options. Create module with setup file.