1 - I would like to know which version Blue prism you are using. If more than 6.9. Get table will work. If it is prior to that you may not able to read the table even after changing Element Type to Web table.
2 - You have to get Table name or Table path to highlight whole table. Once you can able to highlight then only you can get values Get table. Prior to that as I mentioned above you need to change Element Type Web Table.
Still you have question feel free to connect I will be happy to help you more.
------------------------------
Amlan Sahoo
RPA Consultant
Equinix
------------------------------
Regards,
Amlan Sahoo