Compatibility of Managed WordPress and Browser Caching

The current website host provider is GoDaddy. The website is subscribed to the managed wordpress hosting option. I understand that they control browser caching for the most part and also use server-side caching. Still, I see there are errors in the recommendations for how long content should be posted.

I can see that JS is currently set to 7 days instead of 8 and CSS is currently set to 1 day instead of 8 days. I’d like to implement these recommendations on an Apache server, but I don’t know if it’s going to work or cause conflict with Managed WordPress by GoDaddy.

Video Screenshot: http://somup.com/cDiOoRAaR

Questions:

Can the plugin write the .htaccess file in these conditions?

Can I activate browser caching or will GoDaddy not let it work together?