I noticed that the linked account feature in outlook.com has been disabled. Is there a way to have multiple accounts signed in at once now?

I have multiple accounts that I jungle between multiple times every hour so for me it would be a BIG PROBLEM and unthinkable to have to sign in and sign out every time I want to go to their respective inboxes.

I have a professional email and personal email and mixing both sides of my life is not something I want to do. I need each account to be completely clean from the other and have it's own inbox/sent/contacts etc. Nor would the email forwarding be a viable option.

I know that outlook has a similar feature where the user needs to sign up at both accounts simultaneously to have access to both of them at a time and after a while it automatically asks for passwords again. Is this a feature you can add to outlook.com? 

If the reasons why you disabled the linked account is for security purposes, can you PLEASE consider setting it up this way for the 'security measures'. Quite frankly I have never had any sort of issue with the linked accounts on outlook and tbh that is a big reason why I decided to stay with outlook/hotmail rather than upgrade to gmail. I use both accounts with very high security measures and the so called secondary accounts with lower risks I set them as forward to inbox so there is definitely no back door entry .

Thank you for providing us with the excellent hotmail/outlook for so many years. I have been a user since I was 8 in 2001 and I want to remain satisfied with your services. PLEASE!!!