This is the most important part of AstroPhoto Plus.

First make sure you connected all your devices, started INDI Server, focused and pointed your telescope to your target. You can find more details about all these steps in the previous tutorials.

The first step is to go to the Sequences page create a new sequence. Click the new sequence button in the side bar, and this dialog will open:
New Sequence dialog

Choose a name for your sequence, and an unique directory name. By default directory name will be the same as the sequence name. Best practice is to use today's date as a way and the chosen subject as session name (and directory). The chosen directory will always be under the main AstroPhoto Plus directory, usually in your $HOME directory (you can still change this using the Settings page.

You then need to specify the camera used for shooting and, if you use a filter wheel, you need to specify that as well.

Click add to create the new sequence.

Sequences page

Now click the newly created sequence to enter into the Sequence page. Using the new job button in the side menu you can add multiple sequence jobs depending on your needs.

New Sequence Job

Exposures

This is the actual shooting sequence. You can decide how long a single shot should be, how many shots to take or how long the total exposure time should be.

Most of the options are pretty self explanatory. A couple of highlights:

Exposure Sequence Job

Set Filter

This is a really simple job, just select the desired filter and save. When this will run, it will change the current filter in the filter wheel.

Remember to use the Set Filter job before every exposure job

Set filter

Set INDI Property

Like the Filter sequence job, this needs to be set before every exposure sequence job if you want to change a device property for it.

For instance, you can set cooling on for a cooled CCD camera with a first Set INDI Property job, then set the temperature with another.
Change INDI property

Pause Sequence

If you need to pause in between sequence jobs, this particular job will allow you to pause for a fixed number of seconds, or until you click resume. This can be used to adjust focus between sequence jobs.

Pause Sequence

Run Command

This is the most generic sequence job. It will allow you to run any command on the server (given you have appropriate permissions).
Run command

Running sequences

On the left sidebar you have now options for starting, stopping and resetting the sequence.

This is a typical sequence in progress:
Running sequence

Enabling the Last captured image toggle will let you preview the last shot taken by the camera. By default this is disabled, as it can be very slow if your network connection is not very fast.

On an exposure sequence job, you can also preview all the images taken by clicking the little image button:
Sequence images