@CharanreddyS16601564  you can create a boolean property. On click of button, you can set that property to true. Then use that property for visibility. In the pre flow action, set that flag to false, so section will be invisible. After the button click, section will be visible. Add your section within a dynamic layout and use your property as visible expression to this dynamic layout. 

Hi @CharanreddyS16601564,

You can achieve this requirement in multiple ways.

Create a flag property and set the value in the data transform and configure the data transform in the button action tab on click refresh.

for the section visibility condition set the same flag property value in the visibility condition 

let me know if the issue still persists.

Thanks