I think a useful feature would be the ability to dynamically add controls to dialog windows.

For instance, one should be able to type:
/dialogadd somedialog button "blah",2,10 2 30 42,default

to add a button to the dialog "somedialog" which is already open.

Already been mentioned here.

-Andy

it is useles...
your lazzyness will come back at you coz you will still
have to go BACK in script editing and put commands, aliases
etc....

It's got nothing to do with laziness, it wouldn't be less work whatsoever - that's not the point. The point is there's a lot of additional functionality available in certain situations if controls can be changed on-the-fly.