To test the feature, please - git clone https://gitlab.com/akater/org-mode.git - checkout ob-lisp-traces-and-errors - load lisp/ob-lisp.el and lisp/ob-core.el in a running Emacs - M-: (defalias 'org-babel-execute:lisp 'org-babel-execute:lisp--multiple-targets-support) RET
and also - git clone https://github.com/akater/slime.git - checkout grab-multiple-outputs - load slime.el Then start SLIME (this will load patched swank.lisp) and try examples in https://lists.gnu.org/archive/html/emacs-orgmode/2020-04/msg00137.html There is a defalias form in the patched ob-lisp.el but it refers to a future SLIME version .
