I still think it is unfortunate that none of the existing tools nor the web based CKM show the appropriate AQL path for each data element.
It is near impossible to manually build ... WHERE openEHR-EHR-OBSERVATION.blood_pressure.v1/data[at0001]/events[at0006]/data[at0003]/items[at0004]/value/value >= 140 the only way I can do it is to write code to parse the ADL and build the path but I have nothing to validate that my implementation was correct it would be nice to have a set of illustrative AQL queries that one could validate against.