I don’t think there are many full time developers who don’t use 2EmpowerFM Developer Assistant, we couldn’t work without it. The return on investment in terms of increased productivity is huge.
There are 2 versions, standard and advanced, which includes a search and replace option. We only use the standard option, primarily down to price as the price for an advanced license is double that of the standard, which we believe is where most of the value is. It pretty much works in any script workspace or any other window containing a list and in the relationship graph, which can be a godsend. It will also evaluate any highlighted part of a calculation and evaluate it on the fly, rather than having to copy/paste into the data viewer.
Not only that, support is excellent and Chris from Dracoventions is one of the world’s nice guys.
You will rarely spend your money better.