private void updateImportEnablement() {
		boolean isEnabled = prefLoadButton.getSelection();
		
		prefPathTable.setEnabled(isEnabled);
		prefFileAddButton.setEnabled(isEnabled);
		
		boolean isConfig = isEnabled;
		boolean isSelOne = isEnabled;
		boolean canMoveUp = false;
		boolean canMoveDown = false;
		if (isSelOne) {
			TableItem[] selItems = prefPathTable.getSelection();
			isSelOne = (selItems != null && selItems.length == 1);
			if (isSelOne) {
				CommonPrefEPFResource pf = (CommonPrefEPFResource) selItems[0].getData();
				prefFileTypeCombo.select(pf.isForce()? FORCE_INX : INIT_INX);
				isConfig = pf.isConfig();
				if (!isConfig) {
					CommonPrefEPFResources prefFiles = StartupPlugin.getDefault().getCommonPrefFiles(null);
					canMoveUp = prefFiles.canMovePrefFile(pf, false);
					canMoveDown = prefFiles.canMovePrefFile(pf, true);
				}
			}
		}
		
		prefFileUpButton.setEnabled(canMoveUp);
		prefFileDownButton.setEnabled(canMoveDown);
		prefFileEditButton.setEnabled(isSelOne && !isConfig);
		
		// TODO: Possible OK to also have enabled if > 1 selected
		prefFileRemoveButton.setEnabled(isSelOne && !isConfig);
		prefFileTypeCombo.setEnabled(isSelOne && !isConfig);
		prefFileLoadButton.setEnabled(isSelOne);
	}