Sketch plugin to rename layers like a boss. It’s a port of the awesome photoshop plugin called Renamy
Rename Selected Layers
Rename Multiple layers at once. You can access it from the menu Plugins -> Rename It -> Rename Selected Layers or use the shortcut ⌃+⌘+R
Type “%N” to name layer in sequence. You can also use “%n” for reverse order. The more Ns you add the more digits it will add (e.g. , Item %N ==> Item 1, Item 2, Item 3). You can also set where to start the sequence from.
Move Original Layer Name
Type "*" to keep the original anywhere in the new name (e.g., Option * icon).
Add Width and Height
Type "%w" or "%h" to add the width or height of the layer (e.g., Icon %w x %h). Great addition by @GU5TAF
Alphabetical Letters Sequence
Type "%a" or "%A" (for uppercase letters) to name layers with letters alphabetically. (e.g., Item %a ==> Item a, Item b, Item c)
NOTE: “*” and “%” can be escaped with a backslash “\”
Combine keywords for renaming awesomeness
Find & Replace in Selected Layers
Find any text in selected layer(s) and replace it. This feature is CASE SENSITIVE. You can access it from the menu Plugins -> Rename It -> Find and Replace or use the shortcut ⌃+⌥+⌘+R