Can multiple Pin experiences be targeted on the same page? Will they all show up at the same time if a user qualifies to see them?

Yes and Yes! 

Can Pins be dismissed?

No, as long as the user qualifies they will always be on the page (just like a standard native tooltip)

What is the difference between Inline Embedding and Overlayed Embedding?

Inline pins are inserted into a site's HTML before or after the target element that is selected. Because the pin element now exists within the structure of the site, its positioning is affected by the elements around it. It is positioned according to the layout specified by site. There are positives and negatives to this approach. One benefit is that the pins will scroll perfectly smoothly with the page, because they are part of the page. Another benefit is that an inline pin can "make space" for itself when it is placed in between two elements on the page. A downside to this approach is that there is less control over the position of the pin. Because the pin element is part of the site's layout, its exact position is determined by the site.

Overlayed pins are not inserted directly into the structure of the site, but rather are positioned above the site. Appcues calculates the correct position periodically to ensure the correct position is maintained as the user scrolls the page or hides or expands different elements on the page. One benefit to this approach is that the position of the pin can be very specifically set. A downside, however, is that the pin is not embedded into the site so it does not scroll as smoothly with the site.

I've adjusted the z-index of my inline Icon w/ Tooltip Pin, but the tooltip is still being cut off, why?

If you are placing an Inline Pin within a target element or a parent container having the CSS property of overflow:hidden or overflow:auto, then the CSS property will set any overflow of that container to be clipped. This affects the inline pin because it’s nested within that container. To avoid this remove that CSS property from your element, OR place the Pin outside the container that uses this property, OR use the Overlaid embedding option.

Do Pins count in accounts' Frequency Limits?

No, Pins are completely separate from Flows, and will always be visible on the page regardless of limits.

Do themes' custom CSS carry over to Pin Experiences?

No, not at this time. Currently, Pins will only adopt the settings of the actual Theme, and not any additional custom CSS.