.crca added. If you enable it on a custom reation, you can use the trigger word anywhere in the sentence in order to trigger that custom reaction.

src/NadekoBot/Migrations/20170722074959_cr-ca.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace NadekoBot.Migrations
+{
+    public partial class crca : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "ContainsAnywhere",
+                table: "CustomReactions",
+                nullable: false,
+                defaultValue: false);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "ContainsAnywhere",
+                table: "CustomReactions");
+        }
+    }
+}

src/NadekoBot/Migrations/NadekoSqliteContextModelSnapshot.cs

@@ -361,6 +361,8 @@ namespace NadekoBot.Migrations
 
                     b.Property<bool>("AutoDeleteTrigger");
 
+                    b.Property<bool>("ContainsAnywhere");
+
                     b.Property<DateTime?>("DateAdded");
 
                     b.Property<bool>("DmResponse");

src/NadekoBot/Modules/CustomReactions/CustomReactions.cs

@@ -270,7 +270,7 @@ namespace NadekoBot.Modules.CustomReactions
         }
 
         [NadekoCommand, Usage, Description, Aliases]
-        public async Task CrDm(int id)
+        public async Task CrCa(int id)
         {
             if ((Context.Guild == null && !_creds.IsOwner(Context.User)) || 
                 (Context.Guild != null && !((IGuildUser)Context.User).GuildPermissions.Administrator))
@@ -297,21 +297,21 @@ namespace NadekoBot.Modules.CustomReactions
                     return;
                 }
 
-                var setValue = reaction.DmResponse = !reaction.DmResponse;
+                var setValue = reaction.ContainsAnywhere = !reaction.ContainsAnywhere;
 
                 using (var uow = _db.UnitOfWork)
                 {
-                    uow.CustomReactions.Get(id).DmResponse = setValue;
+                    uow.CustomReactions.Get(id).ContainsAnywhere = setValue;
                     uow.Complete();
                 }
 
                 if (setValue)
                 {
-                    await ReplyConfirmLocalized("crdm_enabled", Format.Code(reaction.Id.ToString())).ConfigureAwait(false);
+                    await ReplyConfirmLocalized("crca_enabled", Format.Code(reaction.Id.ToString())).ConfigureAwait(false);
                 }
                 else
                 {
-                    await ReplyConfirmLocalized("crdm_disabled", Format.Code(reaction.Id.ToString())).ConfigureAwait(false);
+                    await ReplyConfirmLocalized("crca_disabled", Format.Code(reaction.Id.ToString())).ConfigureAwait(false);
                 }
             }
             else

src/NadekoBot/Modules/CustomReactions/Services/CustomReactionsService.cs

@@ -69,7 +69,13 @@ namespace NadekoBot.Modules.CustomReactions.Services
 
                         var hasTarget = cr.Response.ToLowerInvariant().Contains("%target%");
                         var trigger = cr.TriggerWithContext(umsg, _client).Trim().ToLowerInvariant();
-                        return ((hasTarget && content.StartsWith(trigger + " ")) || (_bc.BotConfig.CustomReactionsStartWith && content.StartsWith(trigger + " "))  || content == trigger);
+                        return ((cr.ContainsAnywhere && 
+                            (content.StartsWith(trigger + " ") 
+                                || content.EndsWith(" " + trigger) 
+                                || content.Contains(" " + trigger + " "))) 
+                            || (hasTarget && content.StartsWith(trigger + " ")) 
+                            || (_bc.BotConfig.CustomReactionsStartWith && content.StartsWith(trigger + " "))  
+                            || content == trigger);
                     }).ToArray();
 
                     if (rs.Length != 0)

src/NadekoBot/Resources/CommandStrings.resx

@@ -3249,6 +3249,15 @@
   <data name="crdm_usage" xml:space="preserve">
     <value>`{0}crdm 44`</value>
   </data>
+  <data name="crca_cmd" xml:space="preserve">
+    <value>crca</value>
+  </data>
+  <data name="crca_desc" xml:space="preserve">
+    <value>Toggles whether the custom reaction will trigger if the triggering message contains the keyword (instead of only starting with it).</value>
+  </data>
+  <data name="crca_usage" xml:space="preserve">
+    <value>`{0}crca 44`</value>
+  </data>
   <data name="aliaslist_cmd" xml:space="preserve">
     <value>aliaslist cmdmaplist aliases</value>
   </data>

src/NadekoBot/Services/Database/Models/CustomReaction.cs

@@ -17,6 +17,8 @@ namespace NadekoBot.Services.Database.Models
         public bool DmResponse { get; set; }
 
         public bool IsGlobal => !GuildId.HasValue;
+
+        public bool ContainsAnywhere { get; set; }
     }
 
     public class ReactionResponse : DbEntity

src/NadekoBot/_strings/ResponseStrings.en-US.json

@@ -734,6 +734,8 @@
   "customreactions_crad_enabled": "Message triggering the custom reaction with id {0} will get automatically deleted.",
   "customreactions_crdm_disabled": "Response message for the custom reaction with id {0} won't be sent as a DM.",
   "customreactions_crdm_enabled": "Response message for the custom reaction with id {0} will be sent as a DM.",
+  "customreactions_crca_disabled": "Custom reaction with id {0} will no longer trigger unless it's trigger word is at the beggining of the sentence.",
+  "customreactions_crca_enabled": "Custom reaction with id {0} will now trigger if it's contained anywhere in the sentence.",
   "utility_aliases_none": "No alias found",
   "utility_alias_added": "Typing {0} will now be an alias of {1}.",
   "utility_alias_list": "List of aliases",