If you have a number of datasets you want to share to the same user group, the platform lets you perform many shares simultaneously.
From the Catalog page, filter your search to the datasets you want to share. These could be all the datasets from a specific source, or all the datasets you've recently added. You may also choose individual datasets by selecting the input on the dataset card to the let of the dataset title.
Once you have selected the datasets you want to share, select the "Share" button on the top bar. This will open the bulk share popover. From there, select the access level for the share and provide any advanced settings, if required. (Note: filtering the data table is not available when performing bulk shares.)
Select "Share" to complete the share.