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+# What is it
+EDMC plugin for determining current system FC capacity, can be useful to decide if it cost to try schedule FC jump to a system.
+![](1.png)
+
+*Plugin shows all FC slots is occupied in current system. First 112 means how many FCs in system, second 112 means how many 
+FC slots in current system*
+
+***Works only when you are directly in target system, on your ship, with turned on EDMC with this plugin***
+
+# How it works
+Common formula: system FC capacity = number of bodies in the system * 16\
+So in order to calculate maximum FC capacity of the system, we need to get know how many bodies does it have.\
+The plugin uses `FSSSignalDiscovered` and `FSSDiscoveryScan` events from player journal:
+1. `FSSSignalDiscovered`: On entering to supercruise/jumping to a system and making
+basic scan by discovery scanner (just hold fire with bound discovery scanner) the game throws to player journal a 
+`FSSSignalDiscovered` event for every FC in the system, so we can count it.
+2. `FSSDiscoveryScan`: The plugin uses `BodyCount` field of the `FSSDiscoveryScan` event to get the number of bodies in the system.
+This event throwing to player journal once you performed basic scan by discovery scanner (similar as for `FSSSignalDiscovered` 
+events).
+
+# How to use it
+1. Basically, the best case is when you jump in to a system and performing scan by discovery scanner, it will give you current
+system capacity immediately.
+2. If you are already in target system and only now started EDMC then you have to exit to main menu, back in game, enter in 
+supercruise, and you will have current system FC capacity (it is because game doesn't throw `FSSSignalDiscovered`
+events more than one time per session/system visit).
+3. If you just logged in game and already are in target system then you have to launch EDMC and jump in supercruise, you will
+get current system FC capacity.
+
+Please also note that **the plugin will reset system FC capacity after every jump to a system or entering to supercruise**,
+basically, it means that you will have system FC capacity only in short time until you don't get in supercruise again,
+this behaviour may (and probably will) be changed in the future.
+
+ 
+ 
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