Merging projects using Conn 20b

Hello,

I have a large dataset I am working with (~1000), and have previously posted about some difficulties I've had with scheduling it to run parallel on our HPC. I have gotten it to work with limiting it to 30 jobs. Because some subjects need different numbers of initial functional scans removed depending on the scanner software, I have created 3 projects. I would like to merge them prior to 1st level analysis, but I am not having success finding the merge button at any stage of the process.

I had previously used standalone 18b, and there is a merge button under "Close" in the Project dropdown, so that is how I tested out that I could merge 3 projects. But now I am using 20b and not seeing a "Merge" button.

I searched the forum and found an earlier post from this year on how to do it using the command line in Matlab, and even though I get no errors, it does not actually merge them together because the subject count remains the number of one of my groups, not the combined amount of 2 or 3 of my groups. I even tried this with 1 subject + 1 subject to see if volume was the issue, and then it showed the merged project was 1 subject.

Matlab command I used:

fileinput={'/path/conn_project_Siemens_081021.mat','/path/conn_project_GE-DV25_080921.mat','/path/conn_project_GE-DV26_080921.mat'};
fileoutput='/path/Merged_conn_081221.mat';

conn('load', fileinput{1});
conn('save', fileoutput);
conn_merge(char(fileinput), [], true, true);
conn_process postmerge;

Any ideas what I'm doing wrong?

Thanks!