I'm not good at English too, but I'll give it a try :-)

I am unable to translate correctly the above. Can you help ? Thanks.

CurveCustom.txt
Exclusive.txt
Formula.txt
ParamMap.txt

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Event list option related to keyboard input :

入力中に[←][→]キーを押した場合(&A) :  
behavior when press [←][→] keys in edit mode

文字位置を移動
move caret
確定し、列を移動
apply value and move to next column

Change this preference, press F2 key on event list to enter edit mode, and press Left/Right keys.
Then you'll understand what it means.

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Custom mouse action :

ノートからVelocityとGateをスポイト
copy Velocity and Gate from note

This action gets values of Velocity and Gate from a note,
and sets them in Editing Toolbar as current value.


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Error message related to MIDI-IN :

[MIDI-IN]の[入力情報の視聴]機能が動作していない場合は使用できません。
Set [MIDI-IN]-[Enable Midi kbd] to Enable before using this feature.


Error messages related to variables :

u代入先の変数名 = 数値または数式」となるように入力してください。
「代入先の変数名 = 数値または数式」となるように入力してください。
Syntax error. Statement is "<variable> = <number> | <expression>".


Maybe "u" on the beginning of message is typo (first two messages are
same thing), so I ignored it.
And ... It's difficult for me to translate this message by using in
plain words.
Can you use BNF? Please translate BNF in message into plain words ...

(Strictly speaking, <variable> and <number> are terminal symbol, and
 <expression> is non-terminal symbol. So, these symbols expressed
 differently.)


代入先の変数名が異常です。
Variable name in left-hand operand is invalid.

I'm not sure about correctness of this message. I guess this message 
appears when you write statement like "foobar = 100" and a variable
"foobar" is undefined.


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Error message related to presets :

プリセットが見つかりませんでした。
No presets found.

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Error messages related to sound definition files :

コメントの閉じタグが見つかりません。
There is no end of comment tag. / There is a comment tag that has no end tag.

閉じるタグが見つかりません。
There is a tag that has no end tag.


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