RStudio 1.2 Preview: SQL Integration - Preview multiple SQL statements

Hi all!

I am trying out the "deeper" SQL Integration in RStudio 1.2 Preview (Version 1.2.1091). When running the new feature of instant SQL scripts within RStudio, the preview for the SQL script seems to show only the very first SQL statement, following SQL statements are not previewed/executed...

e.g. within an SQL script only the very first command for "table1" is previewed in RStudio-tab "SQL Results":
Select * from table1
Select * from table2
Select * from table3

Is there a way to preview/execute several SQL statements one by one in an SQL script within RStudio, what i am missing here...?

See also https://github.com/rstudio/rstudio/issues/3860#issue-379175189

Thx for any help!