In dialoag.ts add code in constructor.

    this.byId("SmkButton").appendTo(this.byId("SmkId").parent());
            this.byId("AtmButton").appendTo(this.byId("AtmNo").parent());

Dialog.html create id.

<div id="~_Tabs" class="s-DialogContent">
    <div id="~_Toolbar" class="s-DialogToolbar">
    </div>
    <ul>
        <li><a href="#~_TabInfo"><span>Bhakt Detail</span></a></li>
        <li><a href="#~_TabJobs"><span>Job Detail</span></a></li>
        <li><a href="#~_TabIdProofs"><span>Id Proof Detail</span></a></li>
        <li><a href="#~_TabCharactors"><span>Charactr Detail</span></a></li>
        <li><a href="#~_TabSakshi"><span>Sakshi Detail</span></a></li> 
    </ul>
    <div id="~_TabInfo" class="tab-pane s-TabInfo">

        <div class="s-Form">
            <form id="~_Form" action="">
                <div class="fieldset ui-widget ui-widget-content ui-corner-all">
                    <div id="~_PropertyGrid"></div>
                    <div class="clear"></div>
                </div>
            </form>
        </div>
    </div>
    <div id="~_TabJobs" class="tab-pane s-TabOrders">
        <div id="~_JobDetailEditGrid">
        </div>
    </div>
    <div id="~_TabIdProofs" class="tab-pane s-TabOrders">
        <div id="~_IdProofEditGrid">
        </div>

    </div>

    <div id="~_TabCharactors" class="tab-pane s-TabOrders">
        <div id="~_CharacterDetailsEditGrid">
        </div>

    </div>

    <div id="~_TabSakshi" class="tab-pane s-TabOrders">
        <div id="~_SakshiHaribhagatEditGrid">
        </div>
        <div id="~_SakshiTyagiEditGrid">
        </div>
    </div>


    <div id="~_SmkButton">
        <button>!</button>
    </div>
    <div id="~_AtmButton">
        <button>!</button>
    </div>
</div>

Dialog.ts full.

namespace Serene.Bhaktyadi {

    @Serenity.Decorators.registerClass()
    @Serenity.Decorators.maximizable()
    @Serenity.Decorators.responsive()
    export class BhaktMasterDialog extends Serenity.EntityDialog<BhaktMasterRow, any> {
        protected getFormKey() { return BhaktMasterForm.formKey; }
        protected getColumnsKey() { return "Bhaktyadi.BhaktMaster"; }
        protected getIdProperty() { return BhaktMasterRow.idProperty; }
        protected getLocalTextPrefix() { return BhaktMasterRow.localTextPrefix; }
        protected getNameProperty() { return BhaktMasterRow.nameProperty; }
        protected getService() { return BhaktMasterService.baseUrl; }

        protected form = new BhaktMasterForm(this.idPrefix);
        protected SmkId;
        protected AtmNo;
        protected fields = [];
        protected SmkButton;
        protected AtmButton;
        constructor() {

            super();
            var currentdate = new Date();
            currentdate.setDate(currentdate.getDate() + 1);
            this.form.SmkCardIssueDate.set_maxDate(currentdate);
            this.form.SmkEntryDate.set_maxDate(currentdate);
            this.form.AksharvasDate.set_maxDate(currentdate);
            this.form.Dob.set_maxDate(currentdate);
            this.form.SatsangDay.set_maxDate(currentdate);
            this.form.SmkCardIssueDate.change(e => {
                if (this.form.SmkCardIssueDate.value != '' && this.form.SmkCardIssueDate.value != null)
                    this.form.SmkCardIssued.value = true;
                else
                    this.form.SmkCardIssued.value = false;



            });

            this.byId("JobDetail").closest('.field').hide().end().appendTo(this.byId("TabJobs"));
            this.byId("IdProofDetailsList").closest('.field').hide().end().appendTo(this.byId("TabIdProofs"));
            this.byId("CharacterDetailsList").closest('.field').hide().end().appendTo(this.byId("TabCharactors"));
            //this.byId("SkillSetDetailList").closest('.field').hide().end().appendTo(this.byId("TabSkillSet"));
            this.byId("SakshiHaribhagatDetailList").closest('.field').hide().end().appendTo(this.byId("TabSakshi"));
            this.byId("SakshiTyagiDetailList").closest('.field').hide().end().appendTo(this.byId("TabSakshi"));
            this.byId("AddressDetailList").closest('.field').hide().end().appendTo(this.byId("TabAddress"));
            this.byId("SmkButton").appendTo(this.byId("SmkId").parent());
            this.byId("AtmButton").appendTo(this.byId("AtmNo").parent());

            this.SmkButton = this.byId("SmkButton")[0];
            this.AtmButton = this.byId("AtmButton")[0];
            this.afterLoadEntity = () => {

                //if (this.form.Dob) {
                //    var timeDiff = Date.now() - this.form.Dob.valueAsDate.getTime();
                //    this.form.Age.value =String(Math.floor((timeDiff / (1000 * 3600 * 24)) / 365));
                //}

                if (this.form.SmkId.value != undefined && this.form.SmkId.value != null)
                    this.SmkButton.hidden = true;
                if (JSON.stringify(this.form.AtmNo.value) != "" && this.form.AtmNo.value != null)
                    this.AtmButton.hidden = true;
                var BhaktId = this.entity.BhaktId;
                if (BhaktId == undefined) {
                    BhaktSakshiGrid.url = 'Custom/0';
                    TyagiSakshiGrid.url = 'TyagiSakshi/0';
                } else {
                    BhaktSakshiGrid.url = 'Custom/' + BhaktId;
                    TyagiSakshiGrid.url = 'TyagiSakshi/' + BhaktId;
                }
            }


            this.SmkButton.onclick = () => {
                this.fields = [];
                for (var key in Bhaktyadi.BhaktMasterRow.Fields) {
                    if (key !== "SmkId") {
                        this.fields.push(key)
                    }
                }
                Bhaktyadi.BhaktMasterService.List({
                    Take: 1,
                    Sort: ["SmkId DESC"],
                    ExcludeColumns: this.fields
                }, response => {
                    console.log(JSON.stringify(response.Entities[0].SmkId));
                    this.SmkId = JSON.stringify(response.Entities[0].SmkId + 1);

                    if (this.form.SmkId.value == null) { //this.form.SmkId.value.toString() =="" ||
                        if (this.SmkId == null)
                        {
                            this.SmkId = 1;
                        }
                        this.form.SmkId.value = this.SmkId;
                        this.byId("SmkButton")[0].hidden = true;
                    }

                    });
                return false;
            };
            this.AtmButton.onclick = () => {
                this.fields = [];
                for (var key in Bhaktyadi.BhaktMasterRow.Fields) {
                    if (key !== "AtmNo") {
                        this.fields.push(key)
                    }
                }
                Bhaktyadi.BhaktMasterService.List({
                    Take: 1,
                    Sort: ["AtmNo DESC"],
                    ExcludeColumns: this.fields
                }, response => {
                    console.log(JSON.stringify(response.Entities[0].AtmNo));
                    this.AtmNo = response.Entities[0].AtmNo + 1;
                    if (JSON.stringify(this.form.AtmNo.value) == "" || this.form.AtmNo.value == null) {
                        if (this.AtmNo == null) {
                            this.AtmNo = 1;
                        }
                        this.form.AtmNo.value = this.AtmNo;
                        this.byId("AtmButton")[0].hidden = true;
                    }

                });
                return false;
            };
        }



    }
}