Downloading ALV Report using Layout Variant

I want to download an Alv grid report output using layout varaint to Presentation server and also wants to mail to user .

i.e...

I am facing a problem in downloading and in sending mail.

My requirement is, user will choose layout variant

As per Variant chosen, i have to download that alv grid output to presentation server and also to mail.

These download and mail sending options is in selction screen

Will rewards to helpfull ans