How to Change Section properties

Structural problems such as frames often involve a change of section properties from "1EI" to "2EI". This video shows how to change these section properties.
Play store link:
play.google.co...
Music By:
"Sappheiros - Dawn" is under a Creative Commons license (CC BY 3.0)
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[@premorgyan5847]

How to download this beautiful app sir?

[@ReactionTest0]

You'll find the link in the video description.
play.google.com/store/apps/details?id=com.solver.reactiontest
You can also open the above link.