Monorail/maglev Tools construct a Monorail/maglev transport network. Tools may build or remove: monorail and maglev track; bridges; tunnels; signals; depots; station-platforms; & extensions. If playing with timeline, then as time passes in Simutrans more tool-options may appear.

Click monorail/maglev-icon at top of game-view to open toolbar.
Hover mouse-cursor over tool-option (after opening or clicking on toolbar) to see name & where appropriate: construction cost, maintenance cost in brackets, maximum speed limit & maximum length.

Monorail/maglev Tools include, from left to right:

Monorail/maglev Track: tools build Tracks, for monorail/maglev vehicles between two points. Tracks can only be built on slopes in the direction of the slope & may not find a path across rough terrain, water and obstructions. New Track built may use existing Track in its path.
To build Track: click on tool to select Track (changes cursor to track), then click on game-view for start-point of Track (shows a bulldozer in game-view and map co-ordinates at on right of bottom-bar under game-view), & finally click on game-view for end-point for Track.
{Tips: Different types of Tracks may connect (however not when built by some other players). Use Landscape tools to change terrain, to enable paths for Track. Use Destroy/Remove to remove individual pieces of Track & some obstructions. Use [Ctrl] at same time for extra functions. Undo last route construction, [z], does not refund constructions costs.}

Remove monorails: tool removes monorail/maglev Track, when no vehicles are present, between two points in game-view (platforms and signals in path are removed too).
Use of tool incurs a construction cost.
To remove Track: click on tool (changes cursor to a red-cross); then click on Track that is to be deleted (selects deletion point shown by a red cross in game-view); & finally click at another point on track, to remove portion up to first deletion point.
{Tips: Operate as another player to remove their Tracks.}

Ramps and Bridges: tools build straight bridges, for monorail/maglev vehicles to pass, between two pieces of monorail/maglev Track in game-view. Bridges have a maximum span. Tools build bridges from an end of a Track to a suitable place (another Track-end or slightly higher land, within span).
To build a ramp or bridge: click on tool to select (changes cursor to bridge), then click on the end of a Track (start-point of bridge) to build. Some obstructions or lack of a suitable place for bridge-ends will prevent bridge being built: place Track at both sides that is to be bridged, & try again.
{Tips: Use Destroy/Remove to remove bridges (click on bridge-end) & some obstructions to bridge building. Use Track tools to connect bridge-ends to Track.}

Monorail Signals: tools build signals for monorail and maglev vehicles on a Track in game-view. Signals direct & regulate flow of vehicles on Tracks & bridges, junctions & Stops (where vehicles pick-up and drop off passengers).
Two-way & one-way versions of signals can be built. To build a two-way signal on Track: click on tool to select signal (changes cursor to signals); then click on Track. To build a one-way signal: click again at same point, with signals-cursor, to cycle through one-way signals, back to a two-way signal.
IMPORTANT: Take care not to place one-way signals that prevent vehicles reaching their destination, by default vehicles drive on the right (can be changed in simuconf.tab).
- Signals: vehicles proceed only if Track ahead up to next signal or destination in Schedule (a Stop or waypoint) is not occupied by another vehicle. In one-way mode vehicles pass in one direction only.
- PreSignals: vehicles proceed if area of Track ahead (either between three consecutive signals or to next destination in Schedule) is not occupied by another vehicle. In one-way mode they let vehicles pass in one direction only.
- ChooseSignals: direct vehicles to an empty station-platform, at a multi-platform Stop: a vehicle passing this signal may use any empty platform at its next destination, and not just the one assigned in its schedule. If no empty platform or clear route to next destination is found, then vehicles wait at signal.
{Tips: Remove signals with Destroy/Remove. Hold down [Ctrl] to place signals on bridges over lower Tracks.}

Monorail Depot: tool builds a depot for purchasing & managing monrail/maglev vehicles and carriages. Depots have a maintenance cost & are built on the end of monorail/maglev Track in game-view.
To build a monorail depot: click on tool (changes cursor to a depot), then click on end of Track.

Train-stops: tools build station-platforms, used by monorail/maglev vehicles to pick-up and drop-off passengers & mail.
A station-platform when not built adjacent to an existing Stop will create a new Stop.
Train-stops have a maintenance cost & are built on track (but not at bends and junctions in track).
Train-stops have a catchment area for goods, passengers & mail. Different station-platforms may have different capacities for goods, passengers & mail. . In the corner of some tool-options an icon (used in Station List & Stop Information) shows which items the station-platform allows a Stop to handle.
To build a a station-platform: click on tool to select (changes cursor to a platform), then click on Track.
{Tips: Remove train-stops with Destroy/Remove. Extend station-platforms & build multi-platform Stops (by building more platform sections on adjacent track) to accommodate longer and more vehicles, increase capacity & catchment area. Press [v] to show/hide catchment area for goods & passengers in game-view. Hold down [Ctrl] to build on bridges or elevated Track above lower Tracks.}

Monorail Foundation: tool constructs an extension to a Stop and increases the capacity of the Stop. Monorail foundations are built on ends of monorail/maglev Track and have a maintenance cost.
To build an monorail foundation: click on tool to select (changes cursor to foundation), then click required position on the end of a track.
{Tips: Remove monorail foundations with Destroy/Remove.}