I have a digital signage application in which a portion/row can show a max of 3 blocks of information at a time. The number of total blocks vary from 2 to 6, in which 90% will only contain 2 or 3. On some timed cycle the first three blocks are replaced with numbers 4-6 (if present), possibly with an animation in the future.
Is there a suggested symbol to show "more items exists standby for the update"? and the converse that you are currently viewing the (4-6 group) and it will cycle back to (1-3 group) momentarily? I originally considered ellipsis but it seems old-fashion and almost out of place.
I am already using a highlighted dots series indicator examples here for the overall page indicator so I wanted to avoid using those symbols in a different context on the same page.
Update: I ended up going with a bar/toggle type symbol that denotes the presence of additional content (denoting the presence as recommended). Since the display is not interactive and very little room exists to "preview" the additional content I have a symbol that toggles to show that >1 group exists and which group you are currently on (1 or 2). Rows with only 1 group do not have the indicator.