restoring sliding window group, but making it not optional
restoring sliding window group, but making it not optional

psdehal/kb_trimmomatic,psdehal/kb_trimmomatic,psdehal/kb_trimmomatic,kbaseapps/kb_trimmomatic,psdehal/kb_trimmomatic,kbaseapps/kb_trimmomatic,kbaseapps/kb_trimmomatic,psdehal/kb_trimmomatic,kbaseapps/kb_trimmomatic,kbaseapps/kb_trimmomatic,kbaseapps/kb_trimmomatic