Migrating From iD to JOSM

What is different

JOSM uses right mouse drag to pan a map

Unlike osm.org, most other editors and software, you have to hold right mouse click to navigate main a map in editing window.

Aerial imagery

• you have to enable Aerial imagery using Imagery menu
• additional sources can be installed via Imagery tab in settings

Searching in presets

Text search accessible via F3 key, Search presets.

JOSM is also an offline editor

In simplest case, it is possible to Ctrl+O Open file and Ctrl+S Save file with temporary edits. But there many more tools.

Shortcuts

Unfortunately, JOSM shortcuts are different from ​iD

Topic or iD function or a shortcut	comment	JOSM material
1, "add point"	exact analogue	A+Shift, Help/Action/Draw#Shiftmodifier
1, "add point"	similar tool	Ctrl+D Duplicate selected objects, F3 Search presets
2, "add line"	exact analogue	A Help/Action/Draw
3, "add area"	similar tools	A Help/Action/Draw (in most cases, draw a closed way) or Ctrl+B [Action/CreateMultipolygon Create a multi-polygon] out of multiple ways
A, continue drawing a line at the selected node	exact analogue	Help/Action/Draw#StandardMode (A)
B (background layer switcher)	exact analogue	Help/Menu/Imagery menu, and be configured in Help/Preferences/Imagery
C, combines the selected objects	similar tools	Merge Nodes M, Combine Ways C, Join Node to Way J, Ctrl+B [Action/CreateMultipolygon Create a multi-polygon]
D, unjoins the associated lines	similar tool	G Unglue ways, there also tool for relations
Ctrl+C, copy the selected object	exact analogue	Ctrl+C copy the selected object
Ctrl+V, paste a previously copied object	exact analogue	Ctrl+V Paste from buffer
M, move objects	exact analogue	Shift+←, Shift+↑, Shift+→, Shift+↓ or simply using mouse drag
O, circle	exact tool	O Align nodes in circle
R, rotate object	exact analogue	Shift+Ctrl+ mouse move to [Help/Action/Select#Rotate rotate objects
S, straighten the selected line, or square the corners of the selected area or closed line	similar tools	Q Orthogonalize Shape, L Align nodes into a straight line, X extrude tool, A A angle snapping mode and several others
H, show help	exact analogue	F1 show help menu
V, reverse ways	exact analogue	R Reverse Way
W, toggle wireframe mode	exact analogue	Ctrl+W Toggle between wireframe and mappaint mode
Ctrl+Z	exact analogue	Ctrl+Z Undo
Ctrl+Y	exact analogue	Ctrl+Y Redo
Ctrl+S	exact analogue	Ctrl+Shift+↑ Upload to main server
X, split line	similar tools	P Split Way is more restrictive, requires more actions
Ctrl + +	similar tools	Ctrl+J Opens the Jump To Position dialog or Ctrl+L Open location
Ctrl + -	similar tools	1 Zoom to data, 2 Zoom to layer, 3 Zoom to selection and others
Ctrl+Delete or Ctrl+Backspace	exact analogue	Delete Delete
Alt+Mouse click	exact analogue	Help/Action/Draw#Ctrlmodifier place node without connecting to existing object
Shift+Mouse click	exact analogue	Shift+mouse click Help/Action/Select#Selectingmultipleobjects
Shift+Mouse drag	exact analogue	Simply drag a rectangle using mouse: Help/Action/Select#Selectingmultipleobjects

Relations

Tools to edit relations

• [Action/CreateMultipolygon Create a multi-polygon] Ctrl+B
• Relation List toggle dialogue
• Relation Editor - main interface when editing a relation
• ​relation toolbox plugin (optional)

Multipolygon relations

One day you will encounter ​multipolygons. Don't please don't be afraid of this big page, there ​slightly outdated guide (ignore tagging) with decent illustrations.