diff --git a/.github/labeler.yml b/.github/labeler.yml
index 45ea34644b..989b5dd6a3 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -4,4 +4,6 @@ core: "TelegramBotAPI/**" # currently not work
 
 code: "**/*.kt"
 gradle: "**/*.gradle"
-markdown: "**/*.md"
+markdown:
+  - "**/*.md"
+  - "!CHANGELOG.md"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d7afbc178..491ddf25e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,6 +49,16 @@
         * `closePollExactAfter`
         * `closePollAfter`
 
+### 0.27.7
+
+* `TelegramBotAPI`:
+    * Operator function `unaryPlus` was added to `RowBuilder`. Now it is possible to write `row { +button }`
+    * Function `flatMatrix` was added for single-row columns
+    * Operator extension `RowBuilder#plus` was added to be able to write things like `row { this + button }`
+* `TelegramBotAPI-extensions-utils`:
+    * Function `InlineKeyboardMarkup` for flat keyboards was added
+    * Function `ReplyKeyboardMarkup` for flat keyboards was added
+
 ### 0.27.6
 
 * `Common`:
diff --git a/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/InlineKeyboardMarkup.kt b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/InlineKeyboardMarkup.kt
new file mode 100644
index 0000000000..9752514036
--- /dev/null
+++ b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/InlineKeyboardMarkup.kt
@@ -0,0 +1,11 @@
+package com.github.insanusmokrassar.TelegramBotAPI.extensions.utils.types.buttons
+
+import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.InlineKeyboardMarkup
+import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.InlineKeyboardButtons.InlineKeyboardButton
+import com.github.insanusmokrassar.TelegramBotAPI.utils.*
+
+fun InlineKeyboardMarkup(
+    vararg buttons: InlineKeyboardButton
+): InlineKeyboardMarkup = InlineKeyboardMarkup(
+    flatMatrix { buttons.forEach { +it } }
+)
diff --git a/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/ReplyKeyboardMarkup.kt b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/ReplyKeyboardMarkup.kt
new file mode 100644
index 0000000000..473bc131ce
--- /dev/null
+++ b/TelegramBotAPI-extensions-utils/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/extensions/utils/types/buttons/ReplyKeyboardMarkup.kt
@@ -0,0 +1,17 @@
+package com.github.insanusmokrassar.TelegramBotAPI.extensions.utils.types.buttons
+
+import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.ReplyKeyboardMarkup
+import com.github.insanusmokrassar.TelegramBotAPI.types.buttons.KeyboardButton
+import com.github.insanusmokrassar.TelegramBotAPI.utils.flatMatrix
+
+fun ReplyKeyboardMarkup(
+    vararg buttons: KeyboardButton,
+    resizeKeyboard: Boolean? = null,
+    oneTimeKeyboard: Boolean? = null,
+    selective: Boolean? = null
+): ReplyKeyboardMarkup = ReplyKeyboardMarkup(
+    flatMatrix { buttons.forEach { +it } },
+    resizeKeyboard,
+    oneTimeKeyboard,
+    selective
+)
diff --git a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Matrix.kt b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Matrix.kt
index 2469e74da7..2b5edc2af0 100644
--- a/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Matrix.kt
+++ b/TelegramBotAPI/src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/Matrix.kt
@@ -18,12 +18,27 @@ fun <T> matrix(block: MatrixBuilder<T>.() -> Unit): Matrix<T> {
     return MatrixBuilder<T>().also(block).matrix
 }
 
+fun <T> flatMatrix(block: RowBuilder<T>.() -> Unit): Matrix<T> {
+    return MatrixBuilder<T>().apply {
+        row(block)
+    }.matrix
+}
+
+fun <T> flatMatrix(vararg elements: T): Matrix<T> {
+    return MatrixBuilder<T>().apply {
+        row { elements.forEach { +it } }
+    }.matrix
+}
+
+operator fun <T> RowBuilder<T>.plus(t: T) = add(t)
+
 class RowBuilder<T> {
     private val mutRow: MutableList<T> = ArrayList()
     val row: List<T>
         get() = mutRow
 
     fun add(t: T) = mutRow.add(t)
+    operator fun T.unaryPlus() = add(this)
 }
 
 class MatrixBuilder<T> {
diff --git a/gradle.properties b/gradle.properties
index cd63466dc7..3194ec89b8 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,6 +9,6 @@ ktor_version=1.3.2
 javax_activation_version=1.1.1
 
 library_group=com.github.insanusmokrassar
-library_version=0.27.6
+library_version=0.27.7
 
 gradle_bintray_plugin_version=1.8.4