Thanks @Mjaakko. I noticed that pager scripts are not appearing and thought there were bugs in Kise. This describes another issue in 1.1.0. I will add a new bug report.
Desk 0 mouse left-click is not yet completely solved. Works with right-click.
REMARK: This issue is for v.1.1.0 github ta/gh-957, not main branch. In main FvwmPager is ok but not Desk 0.