You can add symbols to a topic . You can choose these symbols in the following ways:
Click "1" or "2" in the menu, you can navigate symbols; You can also click "3" to open the symbols list panel.
To add a symbol to topic, you simply click on symbol, the currently selected symbol will be inserted into the topic; click on the symbol again, the selected symbol will be deleted from the selected topic.
There are two categories of symbols: "1" exclusive symbols. you can only add one symbol in a symbol group to a topic. These symbol groups are the "Task priorities", "Task complete(%)", "Smileys", "Arrows", "Flags" ;"2" normal symbols do not have this restriction.