Is it possible to save journal and append the .jrn file to ppt thru scripting?
Yes you can append the contents of a saved journal to a pptx file.
Look in the Scripting Index
Help==>Scripting Index
for the "Save Presentation" message
Below is a very simple example that does what you are asking for
names default to here(1);
nw1=new window("example",<<JOURNAL></JOURNAL>