User story: When i create a statement, i want to know if that same statement already exists - without scrolling and reading a lot especially on mobile - so that i don't waste my time creating a duplicate
**Concept one - acting already on the property level:**
- When the user selects an already existing property, a warning message is deployed that also allows him to jump to the instance in edit mode: {F80076734}
- He can still select another property, and if it is not being used yet, publish it.
**Concept two - acting on value level (the user will be adding a value to the already existing statement instead of being re-directed)**
- when the user selects an already existing property, we allow him to select a value, but make values already in use for this property visible: {F80078011}
Explanation: Despite the fact that the user is trying to add a statement that already exists, we still allow him to use the "add statement" screen to add a new value. This, combined with the floating add button, would enable users to more easily add statements and add values to statements, instead of blocking or redirecting them.