How to freeze the columns

Dear Experts please help me how to freeze the columns "Particulars"
If in part level "Scroll:Vertical" then its showing like this






"Scroll:Both" --------Display like this

Code:

[Part:PLDirSales]
     Lines       : PLDetail New1,PLDetail New2,PLDetail New3,PLDetail New4,PLDetail New5,PLDetail New6,PLDetail New7,PLDetail New8,PLDetail New9,PLDetail New10,PLDetailcos,+
     PLDetailGrossprofit,PLGrossprofitSoft,PLDirEXPPart,Opeartingprofitbfc,TotFncChrg,Opeartingprofit,PLNonOpeartingIncome,PLNETprofit
     Scroll      :Both


    [Line: PLDetail New1]
        Fields      : DSP AccLedName, PLAmtTIT
        Repeat      : PLAmtTIT : Period Collection Coll
        Local        : Field:DSP AccLedName:Set as:"Particulars"
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtAM : Set as:$$FullMonthName:$$PeriodDateFrom
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtPer: Set as:"%"
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtPer: Type:String
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtAM : Type:String
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtPer: Border:Thin Box
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtAM : Border:Thin Box
        Local        : Field:DSP AccLedName                             : Border:Thin Box
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtAM : Background:Mistitcolor
        Local        : Field:PLAmtTIT : Local    : Field    : PLSRAmtPer: Background:Mistitcolor
        Local        : Field:DSP AccLedName                            : Background:Mistitcolor
       
        Local        : Field:DSP AccLedName:Width:50
        Local        : Field:default:Border         :Thin Left Right

;;;;;;;;;;;;;Field;;;;;;;;;
[Field:PLAmtTIT]
    Field    : PLSRAmtAM,PLSRAmtPer
   
[Field: PLSRAmtAM]
    Use    : Amount Field
    Align:Left
    Set as:$$AsSignedQty:@a
    a    :$$FullMonthName:$$PeriodDateFrom

[Field: PLSRAmtPer]
    Use    : Number Field
    Align:Center
    Set Always:Yes
    a    :$$FullMonthName:$$PeriodDateFrom
    ;Format        : "No Zero, Percentage,Decimal:2"
    Scroll:Yes

[Field: DSP AccLedName]
    Use    : Name Field
    Set as:""
    Width: @@DSPNameWidth

 

Use repeat at line level
At line level
Repeat : Plaamttit
At line level field should not be left field or right field

Use only fields at line level