Better / More Powerful Dax Editor

When batch-editing measures (using Script Dax) and such, it would be really useful to have more powerful editor features such as multiple cursors (including instance selection). Also the ability to copy lines up / down. Note that these features exist in PBI's DAX Formula bar (from source, search for "Multiple Selections" to see the actual shortcuts). But it's not as snappy as editing would be in TE3 (given the lag in PBI accessing different measures), and it's not possible to batch create/edit measures like it would be in the DAX Script Editor. - Ability to Select text instances quickly across a doc and place a cursor at each of them - Ability to place additional cursors vertically - Ability to duplicate lines vertically I've tried find and replace but it's simply not as efficient.