How Do I mod Command Module Interiors and why cant interact with it in flight?

[Daredevilspaz]

Hello KSP Forums! Im a first time poster here only because reddit cant help me so question is how do I add an interior to the cockpit i added into the game. I would also like to know how to add a hatch so Jeb can do a EVA . I additionally have a second question is that when I load up the game and add in the part I made as a command module while in the VAB I cant move it or do anything with it other than attach more things to it and while Im in flight when I right-click no GUI comes up for doing anthing but this bit of code is in the config file

MODULE

{

name = ModuleCommand

minimumCrew = 1

}

RESOURCE

{

name = ElectricCharge

amount = 200

maxAmount = 250

}

MODULE

{

name = ModuleReactionWheel

PitchTorque = 3

YawTorque = 3

RollTorque = 3

RESOURCE

{

name = ElectricCharge

rate = 0.3

}

}

MODULE

{

name = ModuleScienceExperiment

experimentID = crewReport

experimentActionName = Crew Report

resetActionName = Discard Crew Report

reviewActionName = Review Report

useStaging = False

useActionGroups = True

hideUIwhenUnavailable = True

rerunnable = True

xmitDataScalar = 1.0

usageReqMaskInternal = 5

usageReqMaskExternal = -1

}

MODULE

{

name = ModuleScienceContainer

reviewActionName = Review Stored Data

storeActionName = Store Experiments

evaOnlyStorage = True

storageRange = 1.3

}

RESOURCE

{

name = MonoPropellant

amount = 500

maxAmount = 500

}

MODULE

{

name = FlagDecal

textureQuadName = flagTransform

}

}

Help Please?