If you are having issues with not seeing a pay element in the dropdown list when creating a claim, please check that the below settings have been completed correctly.
Add the pay element to the template
Go to Payroll and click Payroll Claims.
Click the Templates button in the top right corner.
Click the template you would use to create the claim.
If the pay element is in the column on the right, it is already added to the template. If it's in the column on the left, click on it to add it to the template.
Click Save.
Check the settings on the pay element
Go to Setup and click Settings.
Click Module Settings and click Payroll Settings.
Select Pay Element.
Search for the element and click on it.
Make sure the Allow in Claims and Allow in Payroll boxes are checked.