Unless I've overlooked it, the website appears to force you to select an "end" date for both your current employer and your current residence.
Interestingly, in the employment history section, there is a box you can check that designates your current employer as your "current" employer, but the website still forces you to choose an end date of your current employer AND it only allows you to select the present date.
The residence history doesn't have the option to check "current" for your current residence, yet it also forces you to select an end date to your current residence.
Quite odd.