How to export data of multiple types in a single csv file on click of Export Action in Backoffice?

In Backoffice we are able to export data of a type e.g. if User click on Product node in explorer tree and select custom(LS product) Product type then Export List View To CSV Action button export data of only those columns which belongs to LS product and visible in List view.

We have a requirement to export data of multiple types in single csv file e.g.In our data model we have two types LSProduct and LSVariantProduct. We have to export data of both these types in a single csv file on click of Export List View To CSV Action button.