Locking Objects (from Internal Analog in IQANdevelop)

I am doing a conversion of an old IQAN system using the MDM screen with XS and XT2 modules. So far everything is translating over pretty clearly, but was wondering if there was any guidance on how to mimic the functionality of the Locking objects. From the IQANdevelop help file, it looks like if the Locking objects are true, it will freeze the output of the function.