How to change property of multiple gain block?

I have a simulink model which has hundreds of gain block. Each of the gain block has different values. I want to change property of each of these block. Is there any way that I can change it at a time?

Answer 1

[Fangjun Jiang]

Use block handles to change multiple blocks in one shot, assuming the values are the same. Turn on 'FindAll' to return block handles in find_system()

open_system('f14');
hBlocks=find_system('f14','FindAll','On','BlockType','Gain');
set(hBlocks,'BackgroundColor','Green')