Split revenue between sales team in forecast

Hello,

I have a problem with spliting revenue between sales team in the opportunity. I have that option enabled in business-configuration:

But when I add myself as a sales team member in an opportunity like this:

I can't add such opportunity and a part of its revenue into my forecast (there only opportunities where I am an owner)

Opportunity close date is inside the forecast range and opportunity is marked for forecast as well:

How can I get to split the revenu in this case?

Best regards,

Nadezhda Rukavishnikova