Current position selector
The icon represent the current selected position on the map, that can slide from a position to another.
You can move the current position by sliding the selector (2) on the time slider, updating the position's date value as follows : date, selected slider time / current position real time (3)

You can move position slider in 2 ways : holding the left mouse click and moving left or right, or by clicking once on it and then pressing left/right arrow keys on keyboard.

The color depends on the property types color configuration defined on your application.
If no color is set, the default color will be yellow.

The number of data depends on the property type that has been configured as "saved as history record".
Only the properties with this option are saved.
Location records data manipulation
Records are real time saved data, that match a position.
Records can be viewed by clicking the button 1 , that will display a card showing all records for the current tag position.
Clicking on one item in the records list will filter positions, and automatically set the position of the selector on the position that match the first position for this record.
This feature allows to have a kind of "zoom in" position for that record.

If the left circle contains a warning icon, it means the records has no position. Clicking on will not any effect.

The item that is highlighted and outlined in blue (3) is the record that match and contains your pre-filtering search values.