What ?
Fast replace of existing modules with ANY new module type using CTRL+Click when the item is held in cursor.Why ?
Right now it is possible to replace modules using CTRL+Click, but only if the modules are upgrades of the same type that already exists in the structure (e.g. speed 1 with speed 2). I love this feature but I was disturbed when I couldn't use the same method to replace modules with any new type (e.g. replacing speed with production). I prefer playing on marathon mode so it is a complete nightmare to try and manually replace all the speed modules on my 100+ furnaces over to productivity.My temporary "work around" is to run down the entire line removing every furnace so I can place a new one and then use the CTRL+Click method with the new modules type. I have also used blueprints to replace entire sections with some success. However, neither of these options makes sense to me when you could just allow the same CTRL+Click method to replace modules with any module held on the cursor, no matter the type.
I thought this idea was fairly straightforward so I was a little shocked when I couldn't find the same request already existing. It is possible that I suck at searching so my apologies if I missed it. Also I'm new here so I'd just like to add that Factorio is the best game I have played in a long time and I can't stop playing, much to the dismay of my girlfriend. Keep up the amazing work!