Change configurations after the dialog is opened

[hamonCordova]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Performance issue
[x] Feature request
[ ] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

I'm not able to change configurations after the dialog is opened.

Expected behavior

Able to change configurations after the dialog is opened.

What is the motivation / use case for changing the behavior?

In my case, i want to change the configurations to disable backdrop and close button when somenting is happening, like loading something.