How can I quickly make a specific time unavailable?

You can block selected times on the calendar in just two clicks. To do this, a quick initial setup is required.

For example, let's say we have the following resource:

Create a new Non-wroking hours rule with an empty schedule.

This rule should have the highest priority. Click the Reorder button. Drag the rule to the bottom. This will ensure it overrides all other rules.

Your configuration will look like this:

Next, go to the order cart. Click Block time.

Select the resource and the time you want to block.

You will then see a drop-down list of non-working rules. Select the rule you created and click Add period.

The selected time will be removed from the list of available slots.

If you need to block an entire day, simply add a period for the whole day in the non-working rule.

The result will look like this:

If you want to make this time slot available again, simply delete the period you created from the rule.