private ParamInfo findOldCustomInfoByNameAndDataTypeSize(List<ParamInfo> oldParams,
			String newParamName, int size) {
		for (ParamInfo paramInfo : oldParams) {
			if (paramInfo.getName().equals(newParamName)) {
				if (paramInfo.getDataType().getLength() == size) {
					return paramInfo;
				}
			}
		}
		return null;
	}
Change custom storage enablement
@param b enablement state
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/function/editor/FunctionEditorModel.java