It happens that one does make a contextual research for a certain term when in the Editor. But there, to the contrary of the Search&Replace module, it is necessary to copy-paste the researched term in the research box of contextual research.
My idea is to automatize this copy-paste, like in the Search&Replace module.
Select the terms (highlight) in Source or Target, go to Contextual Research (where the terms is then already pasted in the box) and Validate the research. It seems it is this way that works the Search&Replace module.
Hope this time it doesn't already exist , dear Paul