Replace would be nice. For instance, if I have 6003 size SMD parts that I want to change to 0805 ones, I have to delete them all and add them again manually. EAGLE has a 'replace' command, I'd love to see it in Easy EDA.
EasyEDA package replace will be 100X better than eagle, the new function will be online soon , I can give you a new UI
You can select all 0603, then change them to 0805 in batch.
![enter image description here][1]
[1]: /editor/20170623/594c8e25161fe.png
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Brand new interactions and interfaces. 
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