My Scribus (both 1.4 & 1.5) was installed from a .dmg on SourceForge. I tried HomeBrew briefly after problems with Fink, but now am firmly in the MacPorts camp. I used to have the MacPorts Scribus (currently offering the 1.4.5 version), and recall being able to use render frames. However, that was before SIP. Maybe I need to try installing it from MacPorts again.
Thanks for the responses.
Installing 1.4.5 from MacPorts left me with the same defaults and same results. Back to square one. The Preference file (scribes 140.rc) shows [LatexEditor="/Library/TeX/texbin/LaTeX"] which apparently takes me to the appropriate directory, since adding "pdflatex --interaction nonstop mode" fires up
kpathsea: Running mktexfmt LaTeX.fmt
mktexfmt: mktexfmt is using the following fmtutil.cnf files (in precedence order):
mktexfmt: mktexfmt is using the following fmtutil.cnf file for writing changes:
mktexfmt [INFO]: Disabled formats: 10
mktexfmt [INFO]: Not selected formats: 46
I can't find the format file `LaTeX.fmt'!
which may be a clue?