Eigen Value Analysis - Keep and Delete command, appurtenances

Dear SACS experts,

Need your help again.

I have some doubts , when we're perform eigen value analysis (dynamic) for fatigue spectral analysis.

If there is command KEEP and DELETE for appurtenances such as boatlanding, 

Is it really required to deactivate or turn off KEEP and DELETE command to run dynamic analysis so all appurtenances converted to structural and the weight included in member elements?

If I'm still keeping the KEEP and DELETE command , the result will show such as below;

What is the definition of weight factors highlighted below, because in dyninp , the weight contingency factor is = 1.05

************ NON-STRUCTURAL WEIGHT DATA ************ FLUID
**** COORDINATES ****                         FACTORED WIGHT ADDED
ITEM GROUP WEIGHT WEIGHT X Y Z   W  EIGHT FACTORS        X    Y    Z     DENSITY  VOLUME WEIGHT
NO. ID       KN     ID   M M M     X  Y     Z           KN   KN    KN    MT/M**3 M **3 KN

1 DUM1 714.0 BL-NORTH    0.6 10.1 0.7 1.32 1.33 1.19 942.4 949.6 949.6 0.000 0.0 0.0

*** TOTAL *** 942.4 949.6 849.6

SACS CONNECT Edition (v11.0) McDermott ID=dm11cHR6d3tumXZrpmqVmZ5jZWhufGhlbKtqlZlyZHk=
QATAR GAS -WHP 1 FATIGUE ANALYSIS DATE 02-APR-2018 TIME 14:43:03 DYN PAGE 36

************* WEIGHT AND CENTER OF GRAVITY SUMMARY *************

************ ITEM DESCRIPTION ************ ************** WEIGHT ************** ******** CENTER OF GRAVITY ********
                                               X       Y      Z                            X Y Z
                                              KN KN KN                                       M M M

PLATE ELEMENTS                               0.001     0.001 0.001                       -1.670 0.000 -15.402

PLATE ELEMENT ADDED MASS                     5.155     5.155 5.155                       -1.648 0.000 -23.860

MEMBER ELEMENTS                              16764.208 16764.208 16764.208                1.182 0.100 -20.909

MEMBER ELEMENT NORMAL ADDED MASS              9408.137 9408.228 3289.238                   1.104 0.056 -37.313

FLOODED MEMBER ELEMENT ENTRAPPED FLUID        5476.904 5476.904 5476.904                  0.626 0.008 -30.320

LOAD CASES CONVERTED TO WEIGHTS               18032.535 18032.535 18032.535               2.733 -0.609 11.599

NON-STRUCTURAL WEIGHTS                        942.436 949.576 849.621                     0.560 10.100 0.725

************ TOTAL ************               50629.376 50636.608 44417.662                1.648 0.017 -9.673

Thank you for your help.

Cheers,

Lenny farida