How to carry a user when they stand on a furni? With this small tutorial you will know.
Wired trigger; repeat effect
Wired condition; furni has users
Wired effect; change furni direction
Wired add-on; carry users
A furni that you want to use

In your Wired effect; change furni direction you select the furni that will be moving when a user is sitting or standing on it. Then press 'ready'.
In your Wired condition; furni has users you select the furni that will have a user on it. Then press 'ready'.

The wired add-on; carry user you won't have to do anything for it as long it is the first option selected and 'allow carrying for; all users in the room'

This is how it should look like:
The wireds needed:
Wired trigger; repeat effect
Wired condition; furni has users
Wired effect; change furni direction
Wired add-on; carry users
A furni that you want to use

Step 1
In your Wired effect; change furni direction you select the furni that will be moving when a user is sitting or standing on it. Then press 'ready'.
Step 2
In your Wired condition; furni has users you select the furni that will have a user on it. Then press 'ready'.

Step 3
The wired add-on; carry user you won't have to do anything for it as long it is the first option selected and 'allow carrying for; all users in the room'

GIF Example:
This is how it should look like: