Useful alternative control structures?

Question

Sometimes when I am programming, I find that some particular control structure would be very useful to me, but is not directly available in my programming language. I think my

Answer 1

if (cond)
   //do something
else (cond)
   //do something
else (cond)
   //do something
first
   //do something
then
   //do something
else (cond)
   //do something
else
   //do something
end

FIRST and THEN blocks runs if any of 3 conditionals are evaluated to true. FIRST block runs before the conditional block and THEN runs after the conditional block has ran.

ELSE conditional or final write following FIRST and THEN statement are independent from these blocks.

It can read as :

if (cond)
   first()
   //do something
   then()
else (cond)
   first()
   //do something
   then()
else (cond)
   first()
   //do something
   then()
else (cond)
   //do something
else
   //do something
end


function first()
   //do something
return
function then()
   //do something
return

These functions are just a form to read. They wouldn't create scope. It's more like a gosub/return from Basic.

Usefulness and readability as matter of discussion.