Modified UI for: Made PlLineOffsetBelowDikeToeAtPolder, PlLineOffsetBelowDikeTopAtPolder, PlLineOffsetBelowDikeTopAtRiver and PlLineOffsetBelowShoulderBaseInside required in xsd/DamLocation.xsd Set default 0.0 when not specified in import (proper defaults in next commit) Related to Issue [MWDAM-1537]