add mono target key to mnemonic
{'nrj_target': {'source': 'SA3_XTD10_MONO/MDL/PHOTON_ENERGY', 'key': 'targetEnergy.value', 'dim': None}}
This makes it easy to select data for mono moving up or down.
{'nrj_target': {'source': 'SA3_XTD10_MONO/MDL/PHOTON_ENERGY', 'key': 'targetEnergy.value', 'dim': None}}
This makes it easy to select data for mono moving up or down.