I have a very basic question: How can I increase the number of digits shown in the output given by Dynare?
Some of the output is very close to zero and I would like to see more than the four digits shown (for the theoretical moments).
I tried using the matlab-command “format long” before running the file but it did not work…

That is somewhat tricky. For theoretical moments, you have to go to

There you will find calls to dyntable like

First number at the end is the number of total digits displayed, the last number is the number of decimals. 4 in this case. You need to manually increase it.