With a POD no earlier than 1800, is it possible for (most) of Britain's east and south African colonies and protectorates to be ruled under a single dominion, similar to Canada, Australia, and others?
The "core" of this territory would cover modern-day South Africa, Namibia, Botswana, Lesotho, Swaziland, Zimbabwe, Zambia, Malawi, Tanzania, Kenya, Uganda, Burundi, Rwanda, South Sudan, Somaliland, Seychelles, and Mauritius. Some regions could be excluded, just so long as most of them are included. Bonus points if some regions like Katanga or Somalia could also be included.
Would it be possible to include Nigeria, Egypt, or other colonies in any way? In OTL, I believe regions as disparate as Aden and Malaya were administered from India at various different points.
Here is a rough map of what it would look like:
I have seen plenty of threads about the possibilities of other dominions, especially in India, but couldn't seem to find anything along these lines. If it's too hard to be a full dominion, it could be administered as a singular colony or some equivalent instead.