modify: opt/splunk/share/splunk/search_mrsparkle/templates/view/dashboard.html
% for rowNumber in range(1,50):
<%call expr="parent.getFloatLayoutRow(modules, rowNumber)"></%call>
Change 50 to what ever number, in this case I choose 100 rows:
% for rowNumber in range(1,100):
<%call expr="parent.getFloatLayoutRow(modules, rowNumber)"></%call>
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