SpellForce 1 has several commands you can use - some of which the game tells you about, others... not so much.
They can however be found in the manual (or by experimenting).
General Commands
Key Bindings
Description
M
Select the next monument - it also allows you to switch between your monuments in the order you activated them in
Ctrl + Left mousekey
Add/remove units to/from your selection
Spacebar
Jump to the latest alert message
Tab
Select the next enemy unit
I
Open inventory
P
Pause game
Ctrl + P
Make a screenshot - the screenshot is saved in the main SpellForce folder
F7
Quicksave
F9
Quickload
F12
Open options menu
Esc
Return to main menu
Page Down
Zoom in & enter third-person view if the avatar is on screen
Page Up
Zoom up & leave third-person view if you are in third-person view
Unit Commands
Key Bindings
Description
Ctrl + Right mousekey
Attack move to target location - I find this command to not always work properly, you can also use shift + right mousekey which definitely works
Shift + Right mousekey
Define waypoints to attack move for your units
Shift + Right mousekey on a unit
Follow the chosen unit
Alt + Right mousekey
Makes the units slowly patrol the waypoints - if only one is set, they will patrol between their starting point and the target point, otherwise the starting point is ignored