The comparisons that can be made are: greater than (>), greater than or equal to (>=), less than (<), and less than or equal to (<=), CROSSOVER, or CROSSUNDER.
For example, if you wanted to code a strategy where the conditions were:
Entry: RSI < 20
Exit: RSI > 80
You would input it like this:
The CROSSOVER and CROSSUNDER conditions mean that the strategy will only enter a trade on the EXACT bar that they cross.