SAP HANA XSA SPS 12.1 HRTT: Deleted Objects (Tables and Procedures)

Hi,

I tried to change columns name within cds tables (WebIDE).

Because I wasn't able to build it (dependencies with procedures) I decided in the end to delete the tables and procedures with HRTT - Toll (Webeditor).

But now, if I try to build the tables which I deleted before, they will not be created anymore. I can build it successfully, but the tables aren't there.

(I took the procedure out, which caused the problems)

Was it wrong to do it with the HRTT Tool?

And one more question, how can I delete all my deployed objects?